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Protagonist Therapeutics, Inc. Common Stock PTGX

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Market dataready · fetched 2026-11-07T07:27:26.916Z

Delta surfaceAlpaca · derived absolute-delta buckets · 2026-11-20

Calculation methodology

Options historyIV: ThetaData historical Greeks, equal-weight mean of call/put 50-delta IV across the next four listed Friday-cycle expirations, including holiday shifts verified against ThetaData’s market calendar. Missing inputs leave gaps. Skew: equal-weight mean of put minus call IV across those four expirations. IV-implied move history: mean of each expiration’s average call/put IV multiplied by the square root of remaining calendar days divided by 365.25; percentage of spot, not a quoted straddle premium.

History data

PriceAlpaca · sip · 2026-11-06T21:00:04.749061374Z

FundamentalsSEC EDGAR · ready · as of 2026-09-30 · fetched 2026-11-07T07:27:26.427221+00:00

Share price$132.04
1D-0.5%
AH$129$130$132$133$1355:30 AM6:30 AM9:00 AM1:00 PM2:00 PMPTGX
Sold putSold callAH

Protagonist Therapeutics, Inc. Common Stock options

Live interpolated PTGX call and put midpoint premiums by absolute delta.Protagonist Therapeutics, Inc. Common Stock$2.14$5.01$7.88$10.75$13.63$113.87$122.75$131.62$140.50$149.3820Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80Δ20Δ C unavailable: no unambiguous, price-consistent delta bracketC —30Δ C unavailable: no unambiguous, price-consistent delta bracketC —OPTION PRICELive PTGX spot · $132.04PTGX PRICE$2.50$2.92$3.40$3.96$4.66$5.37$6.14$7.24$8.35$9.52$10.96$2.45$2.45$2.69$3.19$3.69$4.39$5.13$5.88$6.85$8.06$9.26$10.89$12.80
PutsCheap0.90×
Calls——
Skew——
Implied moveBearish±$9.80
Tilt——
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ117.3280.7%13.0%
25Δ146.4571.8%12.8%122.7461.8%8.9%
30Δ125.9252.8%6.7%
35Δ138.2152.4%6.9%127.7951.0%5.6%
40Δ136.1950.4%5.7%129.6749.1%4.6%
45Δ134.3749.1%4.8%131.2448.3%3.9%
50Δ132.8348.8%4.1%132.7447.9%3.4%
55Δ131.2848.5%3.5%134.2547.4%2.8%
60Δ129.7248.4%2.9%135.8647.3%2.3%
65Δ128.0448.9%2.5%137.5847.7%1.9%
70Δ126.3649.4%2.0%139.3048.0%1.5%
75Δ124.6449.6%1.6%141.3948.5%1.2%
80Δ122.7248.7%1.2%143.7249.0%0.8%

20Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
117.32
IV
80.7%
B/E move
13.0%

25Δ

Calls
Pseudo strike
146.45
IV
71.8%
B/E move
12.8%
Puts
Pseudo strike
122.74
IV
61.8%
B/E move
8.9%

30Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
125.92
IV
52.8%
B/E move
6.7%

35Δ

Calls
Pseudo strike
138.21
IV
52.4%
B/E move
6.9%
Puts
Pseudo strike
127.79
IV
51.0%
B/E move
5.6%

40Δ

Calls
Pseudo strike
136.19
IV
50.4%
B/E move
5.7%
Puts
Pseudo strike
129.67
IV
49.1%
B/E move
4.6%

45Δ

Calls
Pseudo strike
134.37
IV
49.1%
B/E move
4.8%
Puts
Pseudo strike
131.24
IV
48.3%
B/E move
3.9%

50Δ

Calls
Pseudo strike
132.83
IV
48.8%
B/E move
4.1%
Puts
Pseudo strike
132.74
IV
47.9%
B/E move
3.4%

55Δ

Calls
Pseudo strike
131.28
IV
48.5%
B/E move
3.5%
Puts
Pseudo strike
134.25
IV
47.4%
B/E move
2.8%

60Δ

Calls
Pseudo strike
129.72
IV
48.4%
B/E move
2.9%
Puts
Pseudo strike
135.86
IV
47.3%
B/E move
2.3%

65Δ

Calls
Pseudo strike
128.04
IV
48.9%
B/E move
2.5%
Puts
Pseudo strike
137.58
IV
47.7%
B/E move
1.9%

70Δ

Calls
Pseudo strike
126.36
IV
49.4%
B/E move
2.0%
Puts
Pseudo strike
139.30
IV
48.0%
B/E move
1.5%

75Δ

Calls
Pseudo strike
124.64
IV
49.6%
B/E move
1.6%
Puts
Pseudo strike
141.39
IV
48.5%
B/E move
1.2%

80Δ

Calls
Pseudo strike
122.72
IV
48.7%
B/E move
1.2%
Puts
Pseudo strike
143.72
IV
49.0%
B/E move
0.8%

Options history

IV · four-Friday blend41.69%
Daily EOD
PTGX39.2%40.6%41.9%2026-10-19: 39.43%2026-10-20: 39.82%2026-10-21: 39.94%2026-10-22: 41.06%2026-10-23: 41.15%2026-10-26: 41.29%2026-10-27: 40.99%2026-10-28: 40.37%2026-10-29: 40.03%2026-10-30: 41.69%Oct 19Oct 23Oct 30
10 observations2026-10-19 — 2026-10-30
Table
DateIV (%)
39.43%
39.82%
39.94%
41.06%
41.15%
41.29%
40.99%
40.37%
40.03%
41.69%