{"schemaVersion":1,"symbol":"BKCH","days":90,"observations":[{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-21T19:59:31.945000+00:00","captured_at":"2026-10-22T00:44:50.888Z","last_trade_at":"2026-10-21T20:00:00.354675815Z","price":58.43,"iv_pct":70.43069637371617,"implied_move_pct":16.73871141994222,"put_call_skew_pp":-11.442726807696102,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"87b3eb3f20c7384977942055f9d06b11a3651ae70c985376992a44179ec60de4"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-22T19:59:14.630000+00:00","captured_at":"2026-10-22T20:57:24.422Z","last_trade_at":"2026-10-22T20:00:04.232495664Z","price":54.9,"iv_pct":75.23635087885343,"implied_move_pct":17.089145747566008,"put_call_skew_pp":-16.80877839120225,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"5d13f851165caf2019b3d76da4401914caf98330508dc72be291ed49228cbff3"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-23T19:59:46.020000+00:00","captured_at":"2026-10-23T21:18:07.593Z","last_trade_at":"2026-10-23T20:00:00.804330225Z","price":53.54,"iv_pct":73.71126731343512,"implied_move_pct":16.162602587705592,"put_call_skew_pp":-13.929922191098655,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"9237fbedc5c98bae257c15f9212fe49a7596443c257956d05f499883bd2eb213"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-26T19:56:25.043000+00:00","captured_at":"2026-10-27T02:48:26.454Z","last_trade_at":"2026-10-26T20:00:00.589406033Z","price":52.79,"iv_pct":80.58617823129252,"implied_move_pct":17.517795019756974,"put_call_skew_pp":-23.24558642195721,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"2ba10d2a8ed606c51f5b4b3ac1c9253e8638da79b9b2c919562aa4a27f5a2461"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-27T17:39:01.562000+00:00","captured_at":"2026-10-27T17:47:57.379Z","last_trade_at":"2026-10-27T17:40:54.557746257Z","price":54.64,"iv_pct":91.0563365020209,"implied_move_pct":20.427760887205686,"put_call_skew_pp":11.29601728117432,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"a878b55fcf475d0bfb64c1e5cfc971593e9f8bd20b6f2f4b22f9246ab47a8de5"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-27T19:55:05.573000+00:00","captured_at":"2026-10-28T00:50:01.626Z","last_trade_at":"2026-10-27T20:00:00.344632609Z","price":55.14,"iv_pct":79.73596654987493,"implied_move_pct":17.43051845747637,"put_call_skew_pp":5.354888380434097,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"b5e3eca72c846f10c141fd76c6cc8c9737b80927361e909155e7da6f706c0bb7"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-28T19:59:54.939000+00:00","captured_at":"2026-10-28T21:08:12.608Z","last_trade_at":"2026-10-28T20:00:00.143066128Z","price":56.91,"iv_pct":76.27743755712363,"implied_move_pct":16.315178478640714,"put_call_skew_pp":2.443636888558942,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"afb3b899616318a5a767ace0395df4eb95eac0e75ac596a17212270288b865a4"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-29T19:55:05.670000+00:00","captured_at":"2026-10-30T00:38:01.317Z","last_trade_at":"2026-10-29T20:00:00.627180454Z","price":54.77,"iv_pct":74.828967896651,"implied_move_pct":14.927472898316434,"put_call_skew_pp":-7.813605290089831,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"142de9dc4089debd2a97ac4f6438d4f4fb628fdf7fa986471644593518d195b4"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-10-30T19:55:05.460000+00:00","captured_at":"2026-10-30T23:31:31.306Z","last_trade_at":"2026-10-30T20:00:00.189375485Z","price":49.77,"iv_pct":77.74265837556682,"implied_move_pct":15.054265930659975,"put_call_skew_pp":-32.933986817870235,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"871594fa4a8ee76b94690900a0ba8e24827e2038ffe0ee31cd325de769de36cb"},{"symbol":"BKCH","expiry":"2026-11-20","observed_at":"2026-11-03T20:55:05.500000+00:00","captured_at":"2026-11-04T02:27:40.503Z","last_trade_at":"2026-11-03T21:00:00.926627285Z","price":51.38,"iv_pct":80.92541853058447,"implied_move_pct":15.210423281166346,"put_call_skew_pp":24.389757258717847,"model_version":"delta-comparison-v1","source_url":"https://intraalpha.com/companies/BKCH","source_hash":"e7f3a3076eaf0930b2d5f8baaf2306fd0f6416fd4ce5295be268139db0593eab"}],"dailyIv":[{"symbol":"BKCH","date":"2026-08-10","iv_pct":79.42388916836379,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":97.9873560209424,"put_iv_pct":66.59055655296228},{"expiry":"2026-09-18","call_iv_pct":88.61126829268294,"put_iv_pct":71.72682656826568},{"expiry":"2026-10-16","call_iv_pct":83.28475935828877,"put_iv_pct":71.36477611940299},{"expiry":"2027-01-15","call_iv_pct":78.35377777777778,"put_iv_pct":77.47179265658748}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"b3ae5810e5c61abb9bcd8e4790b85c0256ce9a262336e23e4f47358633e14de3","captured_at":"2026-10-24T09:14:27.754202+00:00","observed_at":"2026-08-10T15:59:00-04:00","session_close_at":"2026-08-10T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-10","end_date":"2026-08-10","strike_range":20,"format":"json"},"source_hash":"a2b9e40e9d2cffef1e7186fa33739516bba638383cb801c12abdf22afef574e0"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"8674222253d4599f5c4e311392ef99ce2e0c750c0fc10c84a9846c4be390c285"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"3fc0bd268cb509495d36202a8d7fd92adc280af02e20895e6399a12fd94e690b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"875cdb951b9fc5a74dba104737d51cb83031f2b101126e0aedd157696504fb08"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5e432c5f1e647fbfe28e7c63f418a9304ad4c95f21117efef8152ba7aeb4a4c8"}]},{"symbol":"BKCH","date":"2026-08-11","iv_pct":79.4503509322235,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":88.06188208616781,"put_iv_pct":76.39280587275692},{"expiry":"2026-09-18","call_iv_pct":83.14243902439024,"put_iv_pct":76.10095419847327},{"expiry":"2026-10-16","call_iv_pct":81.63538461538461,"put_iv_pct":75.63383177570093},{"expiry":"2027-01-15","call_iv_pct":76.3827912087912,"put_iv_pct":78.25271867612294}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"50f6f7f98e90df06ae3c6584e5dc84ec16950930beb02dad0a167282d4494c69","captured_at":"2026-10-24T09:14:26.751324+00:00","observed_at":"2026-08-11T15:59:00-04:00","session_close_at":"2026-08-11T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-11","end_date":"2026-08-11","strike_range":20,"format":"json"},"source_hash":"37ae757914519a12768052d1a77c1130c51c150c7f1baef7dbbc1adb8fcffd6f"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"8674222253d4599f5c4e311392ef99ce2e0c750c0fc10c84a9846c4be390c285"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"3fc0bd268cb509495d36202a8d7fd92adc280af02e20895e6399a12fd94e690b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"875cdb951b9fc5a74dba104737d51cb83031f2b101126e0aedd157696504fb08"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5e432c5f1e647fbfe28e7c63f418a9304ad4c95f21117efef8152ba7aeb4a4c8"}]},{"symbol":"BKCH","date":"2026-08-12","iv_pct":76.94766668451084,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":89.24229166666666,"put_iv_pct":65.48365935919055},{"expiry":"2026-09-18","call_iv_pct":78.54285714285714,"put_iv_pct":72.11818181818181},{"expiry":"2026-10-16","call_iv_pct":81.37613333333333,"put_iv_pct":74.11222222222223},{"expiry":"2027-01-15","call_iv_pct":75.85470588235293,"put_iv_pct":78.85128205128206}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"be22a57f731471fb5c85d475462753db25e73eae3f8673a6b67bae899efe195a","captured_at":"2026-10-24T09:14:25.151721+00:00","observed_at":"2026-08-12T15:59:00-04:00","session_close_at":"2026-08-12T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-12","end_date":"2026-08-12","strike_range":20,"format":"json"},"source_hash":"82ba0103096acc114f33a0dac1aa0c1b7df9468b3ce48df98fc7635be9fbf316"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"8674222253d4599f5c4e311392ef99ce2e0c750c0fc10c84a9846c4be390c285"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"3fc0bd268cb509495d36202a8d7fd92adc280af02e20895e6399a12fd94e690b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"875cdb951b9fc5a74dba104737d51cb83031f2b101126e0aedd157696504fb08"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5e432c5f1e647fbfe28e7c63f418a9304ad4c95f21117efef8152ba7aeb4a4c8"}]},{"symbol":"BKCH","date":"2026-08-13","iv_pct":77.48473543154189,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":92.9848275862069,"put_iv_pct":71.42683741648106},{"expiry":"2026-09-18","call_iv_pct":80.73743362831858,"put_iv_pct":69.0982206405694},{"expiry":"2026-10-16","call_iv_pct":81.1472972972973,"put_iv_pct":73.96009708737864},{"expiry":"2027-01-15","call_iv_pct":72.63291338582678,"put_iv_pct":77.89025641025641}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"9567e9262c656972d615482e33323ff5f3db193647a683192f4570c34ae73c53","captured_at":"2026-10-24T09:14:23.822666+00:00","observed_at":"2026-08-13T15:59:00-04:00","session_close_at":"2026-08-13T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-13","end_date":"2026-08-13","strike_range":20,"format":"json"},"source_hash":"0eeb05b4fbcf994efbf2214fa45879990ab1946d7e431e814f16cdad112eab21"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"8674222253d4599f5c4e311392ef99ce2e0c750c0fc10c84a9846c4be390c285"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"3fc0bd268cb509495d36202a8d7fd92adc280af02e20895e6399a12fd94e690b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"875cdb951b9fc5a74dba104737d51cb83031f2b101126e0aedd157696504fb08"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5e432c5f1e647fbfe28e7c63f418a9304ad4c95f21117efef8152ba7aeb4a4c8"}]},{"symbol":"BKCH","date":"2026-08-14","iv_pct":77.01104458069253,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":80.59572016460905,"put_iv_pct":75.35592030360532},{"expiry":"2026-09-18","call_iv_pct":72.60503703703704,"put_iv_pct":80.91326530612245},{"expiry":"2026-10-16","call_iv_pct":74.36845,"put_iv_pct":79.41664804469274},{"expiry":"2027-01-15","call_iv_pct":74.845,"put_iv_pct":77.98831578947369}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"2b2ce87765847a7d56fe22d100dcf478afb9bab8af40996d4c2013d2f0396a8c","captured_at":"2026-10-24T09:14:22.364264+00:00","observed_at":"2026-08-14T15:59:00-04:00","session_close_at":"2026-08-14T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-14","end_date":"2026-08-14","strike_range":20,"format":"json"},"source_hash":"10f8691dc6c51d80d89122153d8af96fe3772e07e2c26c583c7f05083042c778"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"8674222253d4599f5c4e311392ef99ce2e0c750c0fc10c84a9846c4be390c285"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"3fc0bd268cb509495d36202a8d7fd92adc280af02e20895e6399a12fd94e690b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"875cdb951b9fc5a74dba104737d51cb83031f2b101126e0aedd157696504fb08"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-08","end_date":"2026-08-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5e432c5f1e647fbfe28e7c63f418a9304ad4c95f21117efef8152ba7aeb4a4c8"}]},{"symbol":"BKCH","date":"2026-08-17","iv_pct":81.83612223174137,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":97.53340314136125,"put_iv_pct":97.82308580858087},{"expiry":"2026-09-18","call_iv_pct":73.62872611464968,"put_iv_pct":81.27562248995984},{"expiry":"2026-10-16","call_iv_pct":70.56403940886699,"put_iv_pct":81.09057074910821},{"expiry":"2027-01-15","call_iv_pct":74.39697841726618,"put_iv_pct":78.37655172413793}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"b6075cd8e864a50c419134935c0c6fe52717f879f87bdc4afd9f348bd35c9351","captured_at":"2026-10-24T09:14:11.773935+00:00","observed_at":"2026-08-17T15:59:00-04:00","session_close_at":"2026-08-17T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-17","end_date":"2026-08-17","strike_range":20,"format":"json"},"source_hash":"667e5dafa4849723213122f0d1204277a578dbd29a7aa1f6e5f70bf9f270e6c9"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-15","end_date":"2026-08-20","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"541bb422538f605bc0b7a0ce93e7f2e19be6044bead60bb9c12066a09fa1fd93"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7da8dcf0ca9e88b3c2279f2fb66d5129eb27afcedfb2be9ff6b7c89718fd4dd1"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"29b35490b006459d99843e0f7ebb3fe9bfb4c102491eb8678f3b59845bf67037"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"9fd246b93db23474f47237d35a8564f5ce4660d965afaae95aca72a8b2d984c9"}]},{"symbol":"BKCH","date":"2026-08-18","iv_pct":88.00875453480572,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":138.5010267857143,"put_iv_pct":106.01298780487805},{"expiry":"2026-09-18","call_iv_pct":86.29765873015873,"put_iv_pct":66.17344410876133},{"expiry":"2026-10-16","call_iv_pct":82.60409937888198,"put_iv_pct":69.92870967741935},{"expiry":"2027-01-15","call_iv_pct":77.08750593824227,"put_iv_pct":77.46460385438972}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"49fce27db81df20c13a361ac1b6e1dd7375ce18db7a57d8caeb59766dff04ac4","captured_at":"2026-10-24T09:14:10.489597+00:00","observed_at":"2026-08-18T15:59:00-04:00","session_close_at":"2026-08-18T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-18","end_date":"2026-08-18","strike_range":20,"format":"json"},"source_hash":"9ed52ff8f960a20b04fe24472a7abec34ffa24d3a8cdd4cf9e6a7e213d5e7136"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-15","end_date":"2026-08-20","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"541bb422538f605bc0b7a0ce93e7f2e19be6044bead60bb9c12066a09fa1fd93"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7da8dcf0ca9e88b3c2279f2fb66d5129eb27afcedfb2be9ff6b7c89718fd4dd1"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"29b35490b006459d99843e0f7ebb3fe9bfb4c102491eb8678f3b59845bf67037"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"9fd246b93db23474f47237d35a8564f5ce4660d965afaae95aca72a8b2d984c9"}]},{"symbol":"BKCH","date":"2026-08-19","iv_pct":89.09846133349417,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":117.54961151079138,"put_iv_pct":137.57222036727882},{"expiry":"2026-09-18","call_iv_pct":79.13242424242425,"put_iv_pct":75.29351778656127},{"expiry":"2026-10-16","call_iv_pct":74.49747474747474,"put_iv_pct":76.25953367875647},{"expiry":"2027-01-15","call_iv_pct":75.13375939849624,"put_iv_pct":77.34914893617021}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"0e072a6d6eda7fbd60763a2b828a68cef42b90d23e27728efd6bd0762cb978be","captured_at":"2026-10-24T09:14:09.340872+00:00","observed_at":"2026-08-19T15:59:00-04:00","session_close_at":"2026-08-19T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-19","end_date":"2026-08-19","strike_range":20,"format":"json"},"source_hash":"9e6904cd412b84eaf909345e110638947baaaf2345634ad14dac61011e0705a5"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-15","end_date":"2026-08-20","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"541bb422538f605bc0b7a0ce93e7f2e19be6044bead60bb9c12066a09fa1fd93"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7da8dcf0ca9e88b3c2279f2fb66d5129eb27afcedfb2be9ff6b7c89718fd4dd1"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"29b35490b006459d99843e0f7ebb3fe9bfb4c102491eb8678f3b59845bf67037"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"9fd246b93db23474f47237d35a8564f5ce4660d965afaae95aca72a8b2d984c9"}]},{"symbol":"BKCH","date":"2026-08-20","iv_pct":97.96930146973419,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-08-21","call_iv_pct":160.6313880126183,"put_iv_pct":172.60924219910848},{"expiry":"2026-09-18","call_iv_pct":66.83863924050632,"put_iv_pct":80.22520361990951},{"expiry":"2026-10-16","call_iv_pct":70.73548057259713,"put_iv_pct":79.87464487034948},{"expiry":"2027-01-15","call_iv_pct":73.35368421052631,"put_iv_pct":79.48612903225806}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"474ce313fcb2eef50904b46c42be63a43697acb6e8c3cb8568cbd470d584d237","captured_at":"2026-10-24T09:14:08.107871+00:00","observed_at":"2026-08-20T15:59:00-04:00","session_close_at":"2026-08-20T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-08-20","end_date":"2026-08-20","strike_range":20,"format":"json"},"source_hash":"c3e1b16684d2aee6917d4a59cc28b4647f0b009ad30c88b019334e2139529bcb"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-08-21","start_date":"2026-08-15","end_date":"2026-08-20","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"541bb422538f605bc0b7a0ce93e7f2e19be6044bead60bb9c12066a09fa1fd93"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-09-18","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7da8dcf0ca9e88b3c2279f2fb66d5129eb27afcedfb2be9ff6b7c89718fd4dd1"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"29b35490b006459d99843e0f7ebb3fe9bfb4c102491eb8678f3b59845bf67037"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-08-15","end_date":"2026-08-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"9fd246b93db23474f47237d35a8564f5ce4660d965afaae95aca72a8b2d984c9"}]},{"symbol":"BKCH","date":"2026-10-06","iv_pct":71.15781079220488,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":79.25071428571428,"put_iv_pct":68.59768072289157},{"expiry":"2026-11-20","call_iv_pct":72.4295918367347,"put_iv_pct":68.96809128630706},{"expiry":"2027-01-15","call_iv_pct":67.83876543209877,"put_iv_pct":70.65935064935064},{"expiry":"2027-04-16","call_iv_pct":69.2302564102564,"put_iv_pct":72.28803571428571}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"f6e8757f12246276a7d0776294160cc20c0267a0882b1469782bfb83b365e13d","captured_at":"2026-10-24T09:12:07.907794+00:00","observed_at":"2026-10-06T15:59:00-04:00","session_close_at":"2026-10-06T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-06","end_date":"2026-10-06","strike_range":20,"format":"json"},"source_hash":"6811e9ede819e505749cc5a6715ebe7f2f3421b648daa5d6a54c153657420cba"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"f7c866e977cfeea37bf1fe0d3efe32efcf504455120abe1855ac2f9d71840e78"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"9566b81f1147817588891ae528c3c20bcb423d03c9e091e10830e0b7b7690545"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"c43abd8ebbcfaea276b185643e01fd0e5e73f30083ed086dadde9d16cdd64a06"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5163ab66a2b40029bace409e6729abdd0c32fef469033aa7d84fd369b1ac4242"}]},{"symbol":"BKCH","date":"2026-10-07","iv_pct":72.98576023564638,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":74.66159574468084,"put_iv_pct":74.62029182879377},{"expiry":"2026-11-20","call_iv_pct":72.4795358649789,"put_iv_pct":73.53376237623762},{"expiry":"2027-01-15","call_iv_pct":68.8806960950764,"put_iv_pct":73.62103806228374},{"expiry":"2027-04-16","call_iv_pct":70.14255813953488,"put_iv_pct":75.9466037735849}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"d83592fc3a3d174168225d83fb68cea4d971abd6dc2a82c41c4843e832f13b2d","captured_at":"2026-10-24T09:12:06.793843+00:00","observed_at":"2026-10-07T15:59:00-04:00","session_close_at":"2026-10-07T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-07","end_date":"2026-10-07","strike_range":20,"format":"json"},"source_hash":"a8145f207de108363bd4ac0c6ae20e349107da0d9ab14f516d8d0e562fa527c2"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"f7c866e977cfeea37bf1fe0d3efe32efcf504455120abe1855ac2f9d71840e78"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"9566b81f1147817588891ae528c3c20bcb423d03c9e091e10830e0b7b7690545"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"c43abd8ebbcfaea276b185643e01fd0e5e73f30083ed086dadde9d16cdd64a06"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-01","end_date":"2026-10-07","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5163ab66a2b40029bace409e6729abdd0c32fef469033aa7d84fd369b1ac4242"}]},{"symbol":"BKCH","date":"2026-10-08","iv_pct":71.21169191325816,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":69.68466063348416,"put_iv_pct":66.9375822368421},{"expiry":"2026-11-20","call_iv_pct":72.97615969581749,"put_iv_pct":70.22645914396887},{"expiry":"2027-01-15","call_iv_pct":68.31847800237813,"put_iv_pct":74.70894664842682},{"expiry":"2027-04-16","call_iv_pct":70.65466666666667,"put_iv_pct":76.18658227848101}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"c632a567bf1baff5d169793836975ceee005f7585a1a8dc82b14c5c16769ef68","captured_at":"2026-10-24T09:11:49.911106+00:00","observed_at":"2026-10-08T15:59:00-04:00","session_close_at":"2026-10-08T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-08","end_date":"2026-10-08","strike_range":20,"format":"json"},"source_hash":"aa88d69ed8f42f466768e1a7a0dd914097cef9d93559e06c4b76391972c5ccde"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"96a7e8d31cbb79379100304f8acbb3fc9d1c13fee034c338055ef748b6a3fcdf"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7d336166f8785dae91d5de0b6fed51c926c870ed4b9210cfe8332e86e78a4c6f"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"59ce754e90a494fcfcc089c6e7382652af032d617251c9b8281a9b9ed49124ac"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"6397e4dd366c45159dff24d860d1848e714461409fba1d669ad3337425d3096b"}]},{"symbol":"BKCH","date":"2026-10-09","iv_pct":71.93496059436367,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":70.77673405909796,"put_iv_pct":70.91636363636363},{"expiry":"2026-11-20","call_iv_pct":70.62015267175572,"put_iv_pct":76.4278909090909},{"expiry":"2027-01-15","call_iv_pct":68.68261501210652,"put_iv_pct":73.49335793357933},{"expiry":"2027-04-16","call_iv_pct":68.66620689655171,"put_iv_pct":75.89636363636365}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"f8301a6ae2b384c466a730678f5cf9932998c7c45568e507e788b31f3c805164","captured_at":"2026-10-24T09:11:48.570691+00:00","observed_at":"2026-10-09T15:59:00-04:00","session_close_at":"2026-10-09T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-09","end_date":"2026-10-09","strike_range":20,"format":"json"},"source_hash":"7058c1204f645300bf78b76b11c1029622b0961d87d22117ed3f2c8b59b49a03"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"96a7e8d31cbb79379100304f8acbb3fc9d1c13fee034c338055ef748b6a3fcdf"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7d336166f8785dae91d5de0b6fed51c926c870ed4b9210cfe8332e86e78a4c6f"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"59ce754e90a494fcfcc089c6e7382652af032d617251c9b8281a9b9ed49124ac"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"6397e4dd366c45159dff24d860d1848e714461409fba1d669ad3337425d3096b"}]},{"symbol":"BKCH","date":"2026-10-12","iv_pct":78.43113200780365,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":110.13127272727272,"put_iv_pct":86.55302898550725},{"expiry":"2026-11-20","call_iv_pct":75.0844061302682,"put_iv_pct":69.63872262773722},{"expiry":"2027-01-15","call_iv_pct":70.06160188457008,"put_iv_pct":71.48227272727271},{"expiry":"2027-04-16","call_iv_pct":69.92709677419354,"put_iv_pct":74.57065420560748}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"147468109709fb463925f7063add985a569ec80fc7b88b44c41e27cb7d268d9c","captured_at":"2026-10-24T09:11:47.369086+00:00","observed_at":"2026-10-12T15:59:00-04:00","session_close_at":"2026-10-12T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-12","end_date":"2026-10-12","strike_range":20,"format":"json"},"source_hash":"239582b464893cf7956d26a357bb9141740e00af942a4c6caad78c6ef29a3e46"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"96a7e8d31cbb79379100304f8acbb3fc9d1c13fee034c338055ef748b6a3fcdf"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7d336166f8785dae91d5de0b6fed51c926c870ed4b9210cfe8332e86e78a4c6f"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"59ce754e90a494fcfcc089c6e7382652af032d617251c9b8281a9b9ed49124ac"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"6397e4dd366c45159dff24d860d1848e714461409fba1d669ad3337425d3096b"}]},{"symbol":"BKCH","date":"2026-10-13","iv_pct":83.92282933920698,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":117.32483558994196,"put_iv_pct":119.2848623853211},{"expiry":"2026-11-20","call_iv_pct":66.92393728222997,"put_iv_pct":80.25481132075471},{"expiry":"2027-01-15","call_iv_pct":65.54652222222222,"put_iv_pct":76.05448},{"expiry":"2027-04-16","call_iv_pct":68.69621621621621,"put_iv_pct":77.29696969696968}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"2a4d0cd31f2b967278b9f026fe57e63c9c16c1626e34756cb516ace04a76ea3d","captured_at":"2026-10-24T09:11:46.021771+00:00","observed_at":"2026-10-13T15:59:00-04:00","session_close_at":"2026-10-13T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-13","end_date":"2026-10-13","strike_range":20,"format":"json"},"source_hash":"8469e65103984efcf93b56da5a2cda2ceaf0cf4c603307bff553873c7540f83c"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"96a7e8d31cbb79379100304f8acbb3fc9d1c13fee034c338055ef748b6a3fcdf"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7d336166f8785dae91d5de0b6fed51c926c870ed4b9210cfe8332e86e78a4c6f"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"59ce754e90a494fcfcc089c6e7382652af032d617251c9b8281a9b9ed49124ac"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"6397e4dd366c45159dff24d860d1848e714461409fba1d669ad3337425d3096b"}]},{"symbol":"BKCH","date":"2026-10-14","iv_pct":89.66406778258472,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":167.34581027667983,"put_iv_pct":116.84112886048987},{"expiry":"2026-11-20","call_iv_pct":71.4326726519337,"put_iv_pct":68.76573684210527},{"expiry":"2027-01-15","call_iv_pct":71.50351769911505,"put_iv_pct":74.45307317073171},{"expiry":"2027-04-16","call_iv_pct":71.42307189542484,"put_iv_pct":75.54753086419753}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"a208ad82d217513d93ecf911b41cc25ecfed0956363c5a15c923ca1fb2855c93","captured_at":"2026-10-24T09:11:44.655746+00:00","observed_at":"2026-10-14T15:59:00-04:00","session_close_at":"2026-10-14T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-14","end_date":"2026-10-14","strike_range":20,"format":"json"},"source_hash":"d7c73e0a8a93bcccc6e650e543a610c57bbfa0eb2d4ebfc71350e28fbbd5c738"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"96a7e8d31cbb79379100304f8acbb3fc9d1c13fee034c338055ef748b6a3fcdf"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7d336166f8785dae91d5de0b6fed51c926c870ed4b9210cfe8332e86e78a4c6f"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"59ce754e90a494fcfcc089c6e7382652af032d617251c9b8281a9b9ed49124ac"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-08","end_date":"2026-10-14","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"6397e4dd366c45159dff24d860d1848e714461409fba1d669ad3337425d3096b"}]},{"symbol":"BKCH","date":"2026-10-15","iv_pct":99.02517375809163,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-10-16","call_iv_pct":148.88803450862716,"put_iv_pct":210.77135135135134},{"expiry":"2026-11-20","call_iv_pct":61.518061674008806,"put_iv_pct":84.56714285714285},{"expiry":"2026-12-18","call_iv_pct":63.47101626016259,"put_iv_pct":81.43100436681222},{"expiry":"2027-01-15","call_iv_pct":63.86382204246714,"put_iv_pct":77.6909570041609}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"d86a2e353d55493d4e70f8d086bc072bdcea150034b89e9cfbc4ffca543b298f","captured_at":"2026-10-24T09:11:31.446084+00:00","observed_at":"2026-10-15T15:59:00-04:00","session_close_at":"2026-10-15T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-15","end_date":"2026-10-15","strike_range":20,"format":"json"},"source_hash":"c9c5559d3b366da51483172cbd2fa083d662ce91af9013c3223d4fa6eb89ad67"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-10-16","start_date":"2026-10-15","end_date":"2026-10-15","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"87f4fc0213b32100e045315535371227b9820ce7e0026ac5af1a29b619d896c4"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"f1be14472ae1c05ee7c98e591cc02b62bf0e616816bb3aadebfa846976fcd19b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"95769dd8d03dba9981e45c2b910c7132dc234da9afd095b7e5dd2319ae2191ce"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"d53f0dcdb7c00a8a7002fd6d5d6f40891202a7cf0e1b1078d86a91eb8015bbea"}]},{"symbol":"BKCH","date":"2026-10-16","iv_pct":73.05184191384124,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":79.3692921686747,"put_iv_pct":67.2594951923077},{"expiry":"2026-12-18","call_iv_pct":76.54814285714285,"put_iv_pct":70.78180555555555},{"expiry":"2027-01-15","call_iv_pct":71.88015544041451,"put_iv_pct":70.145667001003},{"expiry":"2027-04-16","call_iv_pct":72.64116883116884,"put_iv_pct":75.78900826446281}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"8827fb82599fcbb7ec6dd0a242f22068821b286ac663a650aa5aa14bda687d1d","captured_at":"2026-10-24T09:11:28.640189+00:00","observed_at":"2026-10-16T15:59:00-04:00","session_close_at":"2026-10-16T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-16","end_date":"2026-10-16","strike_range":20,"format":"json"},"source_hash":"3d88074e1f343ae26539cc1b89b6ccb46aaf77e515b95dcb92fef54cb87d06c8"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"f1be14472ae1c05ee7c98e591cc02b62bf0e616816bb3aadebfa846976fcd19b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"95769dd8d03dba9981e45c2b910c7132dc234da9afd095b7e5dd2319ae2191ce"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"d53f0dcdb7c00a8a7002fd6d5d6f40891202a7cf0e1b1078d86a91eb8015bbea"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7203621fbfc49fb7bb0c351dde22d3ee51625aca009f4e01fb8cac0922783e4a"}]},{"symbol":"BKCH","date":"2026-10-19","iv_pct":73.5776387447393,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":81.72642718446602,"put_iv_pct":68.33221911682504},{"expiry":"2026-12-18","call_iv_pct":77.60549999999999,"put_iv_pct":66.63799999999999},{"expiry":"2027-01-15","call_iv_pct":75.34278617710584,"put_iv_pct":70.67446339017052},{"expiry":"2027-04-16","call_iv_pct":73.38346666666666,"put_iv_pct":74.91824742268042}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"d0e59f53adef7d634d20fea2751450b596773b93a7dc2ebc1d15a616db0f6570","captured_at":"2026-10-24T09:11:26.886528+00:00","observed_at":"2026-10-19T15:59:00-04:00","session_close_at":"2026-10-19T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-19","end_date":"2026-10-19","strike_range":20,"format":"json"},"source_hash":"045a96bd9d7e4b0883928a4fc47c35aa7ebba5be12105de63574166d4695cdad"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"f1be14472ae1c05ee7c98e591cc02b62bf0e616816bb3aadebfa846976fcd19b"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"95769dd8d03dba9981e45c2b910c7132dc234da9afd095b7e5dd2319ae2191ce"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"d53f0dcdb7c00a8a7002fd6d5d6f40891202a7cf0e1b1078d86a91eb8015bbea"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-15","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7203621fbfc49fb7bb0c351dde22d3ee51625aca009f4e01fb8cac0922783e4a"}]},{"symbol":"BKCH","date":"2026-10-20","iv_pct":73.20509018099624,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":72.98404997094713,"put_iv_pct":72.15401008827239},{"expiry":"2026-12-18","call_iv_pct":73.53936026936027,"put_iv_pct":76.67112554112553},{"expiry":"2027-01-15","call_iv_pct":72.16070796460177,"put_iv_pct":73.31114382785957},{"expiry":"2027-04-16","call_iv_pct":69.36123287671234,"put_iv_pct":75.4590909090909}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"3949bb14d2f65c44ee2267cfcc5935fb749ac7c00bb28702a4ce2f69202b9b40","captured_at":"2026-10-22T02:11:40.267096+00:00","observed_at":"2026-10-20T15:59:00-04:00","session_close_at":"2026-10-20T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-20","end_date":"2026-10-20","strike_range":20,"format":"json"},"source_hash":"0a4b1cb110489764b546b299e43c2b32a7eb32b8eb469577636b12fd6021c8b7"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"c4022cde8559862abc531fafbc766e94e21810bd21d7d0f1a18c24822869d57c"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7991a468b6ad59c4c3f26d916cef5c25691f3951ee1d7ae684d03966e2658846"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"bee5d2f4c6b184462dd54dfe803f247bc696d41fe3451c8c76ae9d2a817d8fe3"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"d2f4a6bb1119ac48c3684ce4c0d14d228ae70b261dd02533a6e2d5381da5f32e"}]},{"symbol":"BKCH","date":"2026-10-21","iv_pct":71.64450226440414,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":65.92287021154945,"put_iv_pct":75.0979767291532},{"expiry":"2026-12-18","call_iv_pct":69.5391836734694,"put_iv_pct":72.7690909090909},{"expiry":"2027-01-15","call_iv_pct":70.05079365079365,"put_iv_pct":74.58},{"expiry":"2027-04-16","call_iv_pct":69.84323529411765,"put_iv_pct":75.35286764705882}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"6cf60f1e5ce591ffacd76d934cd0074f997927d471d95e5096c0cff11d6b09b1","captured_at":"2026-10-22T02:11:38.748703+00:00","observed_at":"2026-10-21T15:59:00-04:00","session_close_at":"2026-10-21T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/list/contracts/quote","query":{"symbol":"BKCH","date":"2026-10-21","format":"json"},"source_hash":"f73495b36353f34c2dce828396d612cb7509181b572c7ac9179c62dc8248d82b"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"c4022cde8559862abc531fafbc766e94e21810bd21d7d0f1a18c24822869d57c"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7991a468b6ad59c4c3f26d916cef5c25691f3951ee1d7ae684d03966e2658846"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"bee5d2f4c6b184462dd54dfe803f247bc696d41fe3451c8c76ae9d2a817d8fe3"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-20","end_date":"2026-10-21","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"d2f4a6bb1119ac48c3684ce4c0d14d228ae70b261dd02533a6e2d5381da5f32e"}]},{"symbol":"BKCH","date":"2026-10-22","iv_pct":73.79470693959937,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":81.54000622277536,"put_iv_pct":68.76137404580153},{"expiry":"2026-12-18","call_iv_pct":75.73834862385321,"put_iv_pct":70.5165637065637},{"expiry":"2027-01-15","call_iv_pct":70.7462783810464,"put_iv_pct":75.4555497382199},{"expiry":"2027-04-16","call_iv_pct":70.84782051282052,"put_iv_pct":76.75171428571429}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"af7831d1620c87759cf9c778f18ca5f55cd2eafe16f2811697424ada1796af07","captured_at":"2026-10-22T22:30:01.365592+00:00","observed_at":"2026-10-22T15:59:00-04:00","session_close_at":"2026-10-22T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/list/contracts/quote","query":{"symbol":"BKCH","date":"2026-10-22","format":"json"},"source_hash":"0ba797b543c89f6ce92c3a4b4b916cac138dbc1c1c0141b7a4ce9e027c1b5d63"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-21","end_date":"2026-10-22","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5e7c13eab66a5425db3d811dfac91b448667041153f43d8b6c8cdd9c67c3b746"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-21","end_date":"2026-10-22","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"cab9abc74833b2dc4b9df7304481fa163d69dd33c8db180f357123cc68409858"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-21","end_date":"2026-10-22","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"b604d3c54c492c33f67bebe05157c9061e6ca6736eefaa50ddaf8b87e44ed965"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-21","end_date":"2026-10-22","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"dedfba217c943011c2937a558ea588166162856cbea86801c8d4db44ce438baa"}]},{"symbol":"BKCH","date":"2026-10-23","iv_pct":73.83652342885414,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":79.20344943067649,"put_iv_pct":67.8616847826087},{"expiry":"2026-12-18","call_iv_pct":79.03497757847533,"put_iv_pct":69.77142857142856},{"expiry":"2027-01-15","call_iv_pct":72.7774074074074,"put_iv_pct":73.7373987854251},{"expiry":"2027-04-16","call_iv_pct":73.12705882352941,"put_iv_pct":75.17878205128204}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"f9ae97a1ecffc279d2398981da6bd079bbc655e01ef1dd9ef9f96b59421814d1","captured_at":"2026-10-23T22:11:57.351149+00:00","observed_at":"2026-10-23T15:59:00-04:00","session_close_at":"2026-10-23T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/list/contracts/quote","query":{"symbol":"BKCH","date":"2026-10-23","format":"json"},"source_hash":"0ba797b543c89f6ce92c3a4b4b916cac138dbc1c1c0141b7a4ce9e027c1b5d63"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-22","end_date":"2026-10-23","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"7dd943110fcd0927e9ee2140aab4aec0df003d76d5320d81dd3c8a25419960f3"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-22","end_date":"2026-10-23","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"ac75604cd809ddc2ca5bbbb36712a7bc4d8a37ae7ae57aeea6ca28d9551715f0"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-22","end_date":"2026-10-23","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"01714ed2822a13b14e9897296d885d4fd4e4547c53245e57b3e7c1db701e8abd"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-22","end_date":"2026-10-23","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"41d943a4591eb69c6eb147089f199d33dbe894ad6b20417fbd6183ba079da1de"}]},{"symbol":"BKCH","date":"2026-10-26","iv_pct":74.80163718424855,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":80.3325498007968,"put_iv_pct":80.94503397508494},{"expiry":"2026-12-18","call_iv_pct":75.1097833935018,"put_iv_pct":68.73298913043477},{"expiry":"2027-01-15","call_iv_pct":73.78503184713375,"put_iv_pct":72.11469289827255},{"expiry":"2027-04-16","call_iv_pct":72.50556962025317,"put_iv_pct":74.88744680851063}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"22c884b8d8a9a059fb3f87c8b62808767209028ae4584a8391aeb7fde6bcad54","captured_at":"2026-10-28T13:21:08.603073+00:00","observed_at":"2026-10-26T15:59:00-04:00","session_close_at":"2026-10-26T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"v2_verified_expiry_inventory","source_hash":"7e3b4187b5e2f2d19c443b91e1c6a4025a5b3f4c24e6e00fe33236d1d7bf063c"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"0b3f876b798eed577fce88424c97a318ddd5e416db9db34ae69cb29f5b80af84"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"ec902280267a0659bcc6052a084f94cb2b955d33ee3345cf72b7e6fed7c79c81"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"1d76c3d0f967e6f2f5de5c598cea8f00d8fea0b838c5b19dc383f703c6886271"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"13939ef724697a46113a7fe0a760f454d614d154bbe6d8399693e3f0ccb540ff"}]},{"symbol":"BKCH","date":"2026-10-27","iv_pct":75.45410490833169,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":68.37381171067737,"put_iv_pct":90.85954790823212},{"expiry":"2026-12-18","call_iv_pct":67.48719298245615,"put_iv_pct":85.3816},{"expiry":"2027-01-15","call_iv_pct":66.44595446584938,"put_iv_pct":78.83452554744525},{"expiry":"2027-04-16","call_iv_pct":68.2645744680851,"put_iv_pct":77.98563218390804}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"edf0061dab9afc95690e5a992a1a82f050fc8bdfe7ca546f67aa264dc295c0b6","captured_at":"2026-10-28T13:21:08.088115+00:00","observed_at":"2026-10-27T15:59:00-04:00","session_close_at":"2026-10-27T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-27","end_date":"2026-10-27","strike_range":20,"format":"json"},"source_hash":"44b4c7907d75371ee82c4ca7e366b73f86fb74c29651a9f90049404e6c64857e"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"0b3f876b798eed577fce88424c97a318ddd5e416db9db34ae69cb29f5b80af84"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"ec902280267a0659bcc6052a084f94cb2b955d33ee3345cf72b7e6fed7c79c81"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"1d76c3d0f967e6f2f5de5c598cea8f00d8fea0b838c5b19dc383f703c6886271"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-26","end_date":"2026-10-27","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"13939ef724697a46113a7fe0a760f454d614d154bbe6d8399693e3f0ccb540ff"}]},{"symbol":"BKCH","date":"2026-10-28","iv_pct":73.47845154514468,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":66.20758808933002,"put_iv_pct":86.01558400999374},{"expiry":"2026-12-18","call_iv_pct":63.30747572815534,"put_iv_pct":82.04076923076923},{"expiry":"2027-01-15","call_iv_pct":63.242461538461534,"put_iv_pct":80.05285388127852},{"expiry":"2027-04-16","call_iv_pct":67.14606060606062,"put_iv_pct":79.81481927710843}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"9dd1c9069e9e4371f83eaab0c4d6685de5a8c71af6f2b916ac9e26e58274f14b","captured_at":"2026-10-29T13:26:09.546939+00:00","observed_at":"2026-10-28T15:59:00-04:00","session_close_at":"2026-10-28T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-28","end_date":"2026-10-28","strike_range":20,"format":"json"},"source_hash":"1de0475008e847d126523fecbc6081c1f3256648fa958169bf11c057bcb76252"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-27","end_date":"2026-10-28","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"52cf8fa11c6b6953eb46bdaaf7ca0edf8dbeb89694d6000ee886b460e21af6bb"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-27","end_date":"2026-10-28","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"b61f901cb9b2acaeed7c6977893d458783a2dd665809480c28ecaf482f460476"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-27","end_date":"2026-10-28","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"b8359f5cc93b9875d3b503286cf21b2b2f84181496ef33b46fd4d484848da85a"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-27","end_date":"2026-10-28","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"92b706f3ca2306474e8698bd8b47dd76181ba21cc80499d0f8267ce04add5275"}]},{"symbol":"BKCH","date":"2026-10-29","iv_pct":73.96356175669699,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":77.58021739130434,"put_iv_pct":71.93114430379748},{"expiry":"2026-12-18","call_iv_pct":76.08876712328767,"put_iv_pct":74.06441860465117},{"expiry":"2027-01-15","call_iv_pct":72.92074183976261,"put_iv_pct":71.49622009569377},{"expiry":"2027-04-16","call_iv_pct":71.73683870967741,"put_iv_pct":75.89014598540146}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"93c620a49e7a2e4b3f33219043a43116015dc7c7b0df73ff321b7fc92b7f7290","captured_at":"2026-10-30T13:28:41.647990+00:00","observed_at":"2026-10-29T15:59:00-04:00","session_close_at":"2026-10-29T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"ThetaData expiry inventory","endpoint":"option/history/greeks/eod","query":{"symbol":"BKCH","expiration":"*","start_date":"2026-10-29","end_date":"2026-10-29","strike_range":20,"format":"json"},"source_hash":"81f33a2b0ee5b271d83e88d90340ca4c51a0e9049084b62acf65bff5d741a584"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-28","end_date":"2026-10-29","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"29b4bcdcd8fb26e03824574def935e99821ddaac53e9644e37016371bc88fd09"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-28","end_date":"2026-10-29","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"c4120b9a18363d3869d54cf52daa1e890f61b02600e954eb9cddf2073f315d49"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-28","end_date":"2026-10-29","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"6240450a1ccd6de9dab7a3e08a32b7b43b4d4e9df95cff036a3c45390d24e34e"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-28","end_date":"2026-10-29","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"957ee5773d0d14ca970f72c74436e42a074b99bc35b94e8320c4916b36ece609"}]},{"symbol":"BKCH","date":"2026-10-30","iv_pct":75.52789829296631,"model_version":"theta-four-friday-close-50delta-v3","expiries":[{"expiry":"2026-11-20","call_iv_pct":83.6422974472808,"put_iv_pct":72.61301886792452},{"expiry":"2026-12-18","call_iv_pct":78.3520640569395,"put_iv_pct":72.88249158249158},{"expiry":"2027-01-15","call_iv_pct":68.43914623837702,"put_iv_pct":79.34297872340426},{"expiry":"2027-04-16","call_iv_pct":70.26118942731277,"put_iv_pct":78.69}],"source":"ThetaData historical first-order Greeks","provider_symbol":"BKCH","calendar_adjustments":[],"calendar_source":"ThetaData on_date and year_holidays","source_hash":"a86202efd94f88514d00bb107afc4883ca32279cbf1324dba26a0c183ef7827c","captured_at":"2026-10-31T22:57:01.387221+00:00","observed_at":"2026-10-30T15:59:00-04:00","session_close_at":"2026-10-30T16:00:00-04:00","observation_policy":"equity_session_close_minus_one_minute","expiry_inventory":{"source":"v2_verified_expiry_inventory","source_hash":"00f052c262bbdfb944b8a98cdab894532815e2a2bf6e8f3571b42f2f73aaf243"},"source_requests":[{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-11-20","start_date":"2026-10-29","end_date":"2026-10-30","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"28f2be15a7c98325f34bc306673e06fa2f22948037bcb7eca57cb75aa0d4cb5e"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2026-12-18","start_date":"2026-10-29","end_date":"2026-10-30","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"a8e00f042373039225bb55f62583765bc5c09bc42ed13cf04e08f6db188805d8"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-01-15","start_date":"2026-10-29","end_date":"2026-10-30","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"5a407eb1b00667e01491b8cc1745005e5cb1c51149f51e9b0bfecb7f00c4d902"},{"endpoint":"option/history/greeks/first_order","query":{"symbol":"BKCH","expiration":"2027-04-16","start_date":"2026-10-29","end_date":"2026-10-30","start_time":"15:59:00","end_time":"15:59:00","interval":"1m","format":"json"},"source_hash":"c7c64c7426de0d1506c919fce49142f0e69e29ac12ee4ee5211ba63674217c1a"}]}],"dailyIvModel":"theta-four-friday-close-50delta-v3","truncated":false,"expiries":["2026-11-20"],"url":"https://intraalpha.com/companies/BKCH","methodology":"https://intraalpha.com/resources/options-delta-methodology","units":{"iv_pct":"annualized percent","implied_move_pct":"percent of underlying price","put_call_skew_pp":"percentage points","price":"USD","dailyBlend.iv_pct":"annualized percent","dailyBlend.put_call_skew_pp":"percentage points; mean put IV minus call IV across four expiries","dailyBlend.implied_move_pct":"percent of spot; mean per-expiry mean call/put IV percent times sqrt(calendar days / 365.25); IV-based estimate, not quoted straddle premium"},"dailyBlend":[{"date":"2026-08-10","observed_at":"2026-08-10T15:59:00-04:00","iv_pct":79.42388916836379,"put_call_skew_pp":-15.270802388118362,"implied_move_pct":31.209668327545955,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"b3ae5810e5c61abb9bcd8e4790b85c0256ce9a262336e23e4f47358633e14de3","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-11","observed_at":"2026-08-11T15:59:00-04:00","iv_pct":79.4503509322235,"put_call_skew_pp":-5.710546602919951,"implied_move_pct":30.85137523217829,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"50f6f7f98e90df06ae3c6584e5dc84ec16950930beb02dad0a167282d4494c69","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-12","observed_at":"2026-08-12T15:59:00-04:00","iv_pct":76.94766668451085,"put_call_skew_pp":-8.612660643583354,"implied_move_pct":29.86731807984504,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"be22a57f731471fb5c85d475462753db25e73eae3f8673a6b67bae899efe195a","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-13","observed_at":"2026-08-13T15:59:00-04:00","iv_pct":77.48473543154189,"put_call_skew_pp":-8.781765085741014,"implied_move_pct":29.29449783969993,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"9567e9262c656972d615482e33323ff5f3db193647a683192f4570c34ae73c53","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-14","observed_at":"2026-08-14T15:59:00-04:00","iv_pct":77.01104458069253,"put_call_skew_pp":2.814985560562029,"implied_move_pct":29.02751797513614,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"2b2ce87765847a7d56fe22d100dcf478afb9bab8af40996d4c2013d2f0396a8c","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-17","observed_at":"2026-08-17T15:59:00-04:00","iv_pct":81.83612223174137,"put_call_skew_pp":5.610670922410687,"implied_move_pct":28.248731594344292,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"b6075cd8e864a50c419134935c0c6fe52717f879f87bdc4afd9f348bd35c9351","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-18","observed_at":"2026-08-18T15:59:00-04:00","iv_pct":88.00875453480572,"put_call_skew_pp":-16.227636346887206,"implied_move_pct":28.365946383672174,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"49fce27db81df20c13a361ac1b6e1dd7375ce18db7a57d8caeb59766dff04ac4","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-19","observed_at":"2026-08-19T15:59:00-04:00","iv_pct":89.09846133349416,"put_call_skew_pp":5.040287717395039,"implied_move_pct":27.57529150261979,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"0e072a6d6eda7fbd60763a2b828a68cef42b90d23e27728efd6bd0762cb978be","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-08-20","observed_at":"2026-08-20T15:59:00-04:00","iv_pct":97.9693014697342,"put_call_skew_pp":10.159006921344371,"implied_move_pct":26.957973912499998,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"474ce313fcb2eef50904b46c42be63a43697acb6e8c3cb8568cbd470d584d237","expiries":["2026-08-21","2026-09-18","2026-10-16","2027-01-15"]},{"date":"2026-10-06","observed_at":"2026-10-06T15:59:00-04:00","iv_pct":71.15781079220488,"put_call_skew_pp":-2.059042397992293,"implied_move_pct":31.19118254613486,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"f6e8757f12246276a7d0776294160cc20c0267a0882b1469782bfb83b365e13d","expiries":["2026-10-16","2026-11-20","2027-01-15","2027-04-16"]},{"date":"2026-10-07","observed_at":"2026-10-07T15:59:00-04:00","iv_pct":72.98576023564638,"put_call_skew_pp":2.889327549157251,"implied_move_pct":31.7897225660325,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"d83592fc3a3d174168225d83fb68cea4d971abd6dc2a82c41c4843e832f13b2d","expiries":["2026-10-16","2026-11-20","2027-01-15","2027-04-16"]},{"date":"2026-10-08","observed_at":"2026-10-08T15:59:00-04:00","iv_pct":71.21169191325816,"put_call_skew_pp":1.6064013273430895,"implied_move_pct":31.215737638180443,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"c632a567bf1baff5d169793836975ceee005f7585a1a8dc82b14c5c16769ef68","expiries":["2026-10-16","2026-11-20","2027-01-15","2027-04-16"]},{"date":"2026-10-09","observed_at":"2026-10-09T15:59:00-04:00","iv_pct":71.93496059436367,"put_call_skew_pp":4.497066868971398,"implied_move_pct":30.889375243687425,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"f8301a6ae2b384c466a730678f5cf9932998c7c45568e507e788b31f3c805164","expiries":["2026-10-16","2026-11-20","2027-01-15","2027-04-16"]},{"date":"2026-10-12","observed_at":"2026-10-12T15:59:00-04:00","iv_pct":78.43113200780365,"put_call_skew_pp":-5.739924742544968,"implied_move_pct":30.396922403296834,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"147468109709fb463925f7063add985a569ec80fc7b88b44c41e27cb7d268d9c","expiries":["2026-10-16","2026-11-20","2027-01-15","2027-04-16"]},{"date":"2026-10-13","observed_at":"2026-10-13T15:59:00-04:00","iv_pct":83.922829339207,"put_call_skew_pp":8.599903023108784,"implied_move_pct":30.581598700425644,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"2a4d0cd31f2b967278b9f026fe57e63c9c16c1626e34756cb516ace04a76ea3d","expiries":["2026-10-16","2026-11-20","2027-01-15","2027-04-16"]},{"date":"2026-10-14","observed_at":"2026-10-14T15:59:00-04:00","iv_pct":89.66406778258472,"put_call_skew_pp":-11.524400696407259,"implied_move_pct":30.451898576585858,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"a208ad82d217513d93ecf911b41cc25ecfed0956363c5a15c923ca1fb2855c93","expiries":["2026-10-16","2026-11-20","2027-01-15","2027-04-16"]},{"date":"2026-10-15","observed_at":"2026-10-15T15:59:00-04:00","iv_pct":99.02517375809163,"put_call_skew_pp":29.179880273550403,"implied_move_pct":24.547586560146932,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"d86a2e353d55493d4e70f8d086bc072bdcea150034b89e9cfbc4ffca543b298f","expiries":["2026-10-16","2026-11-20","2026-12-18","2027-01-15"]},{"date":"2026-10-16","observed_at":"2026-10-16T15:59:00-04:00","iv_pct":73.05184191384124,"put_call_skew_pp":-4.115695821017962,"implied_move_pct":35.280663388168485,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"8827fb82599fcbb7ec6dd0a242f22068821b286ac663a650aa5aa14bda687d1d","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-19","observed_at":"2026-10-19T15:59:00-04:00","iv_pct":73.5776387447393,"put_call_skew_pp":-6.873812524640634,"implied_move_pct":34.796235428094676,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"d0e59f53adef7d634d20fea2751450b596773b93a7dc2ebc1d15a616db0f6570","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-20","observed_at":"2026-10-20T15:59:00-04:00","iv_pct":73.20509018099624,"put_call_skew_pp":2.3875048211817216,"implied_move_pct":34.34381317955891,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"3949bb14d2f65c44ee2267cfcc5935fb749ac7c00bb28702a4ce2f69202b9b40","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-21","observed_at":"2026-10-21T15:59:00-04:00","iv_pct":71.64450226440414,"put_call_skew_pp":5.610963113843194,"implied_move_pct":33.54750966174302,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"6cf60f1e5ce591ffacd76d934cd0074f997927d471d95e5096c0cff11d6b09b1","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-22","observed_at":"2026-10-22T15:59:00-04:00","iv_pct":73.79470693959937,"put_call_skew_pp":-1.846812991049017,"implied_move_pct":34.139375368850764,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"af7831d1620c87759cf9c778f18ca5f55cd2eafe16f2811697424ada1796af07","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-23","observed_at":"2026-10-23T15:59:00-04:00","iv_pct":73.83652342885412,"put_call_skew_pp":-4.398399762336055,"implied_move_pct":33.98797142025371,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"f9ae97a1ecffc279d2398981da6bd079bbc655e01ef1dd9ef9f96b59421814d1","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-26","observed_at":"2026-10-26T15:59:00-04:00","iv_pct":74.80163718424856,"put_call_skew_pp":-1.2631929623456557,"implied_move_pct":33.35500848368263,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"22c884b8d8a9a059fb3f87c8b62808767209028ae4584a8391aeb7fde6bcad54","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-27","observed_at":"2026-10-27T15:59:00-04:00","iv_pct":75.45410490833169,"put_call_skew_pp":15.622443003129355,"implied_move_pct":33.319776548992266,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"edf0061dab9afc95690e5a992a1a82f050fc8bdfe7ca546f67aa264dc295c0b6","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-28","observed_at":"2026-10-28T15:59:00-04:00","iv_pct":73.47845154514468,"put_call_skew_pp":17.005110109285603,"implied_move_pct":32.426804466092854,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"9dd1c9069e9e4371f83eaab0c4d6685de5a8c71af6f2b916ac9e26e58274f14b","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-29","observed_at":"2026-10-29T15:59:00-04:00","iv_pct":73.96356175669698,"put_call_skew_pp":-1.2361590186220397,"implied_move_pct":32.425613023623626,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"93c620a49e7a2e4b3f33219043a43116015dc7c7b0df73ff321b7fc92b7f7290","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]},{"date":"2026-10-30","observed_at":"2026-10-30T15:59:00-04:00","iv_pct":75.52789829296631,"put_call_skew_pp":0.7084480009775689,"implied_move_pct":32.71656313596485,"model_version":"four-friday-iv-derived-history-v1","source_model":"theta-four-friday-close-50delta-v3","source_hash":"a86202efd94f88514d00bb107afc4883ca32279cbf1324dba26a0c183ef7827c","expiries":["2026-11-20","2026-12-18","2027-01-15","2027-04-16"]}]}