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Protagonist Therapeutics, Inc. Common Stock PTGX

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Market dataready · fetched 2026-11-13T02:55:31.631Z

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 · 2026-11-12T21:00:01.415218324Z

FundamentalsSEC EDGAR · ready · as of 2026-09-30 · fetched 2026-11-13T02:51:21.258110+00:00

Share price$133.74
1D+0.5%
AH$131$133$135$137$1395:30 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$1.97$3.95$5.94$7.92$9.91$117.56$125.10$132.64$140.19$147.7320Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80Δ20Δ C unavailable: no unambiguous, price-consistent delta bracketC —30Δ P unavailable: no unambiguous, price-consistent delta bracketP —80Δ P unavailable: no unambiguous, price-consistent delta bracketP —OPTION PRICELive PTGX spot · $133.74PTGX PRICE$2.45$2.45$2.56$2.79$3.01$3.56$4.23$4.90$5.56$6.58$7.96$9.33$2.45$2.45$2.19$2.52$2.85$3.18$3.52$4.19$4.87$5.55$6.23
Puts——
Calls——
Skew——
Implied moveBullish±$6.75
Tilt——
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ119.00105.1%12.9%
25Δ148.2691.7%12.7%124.5679.8%8.7%
30Δ142.2670.6%8.2%
35Δ139.1259.0%5.9%130.6145.8%4.0%
40Δ137.3053.1%4.7%131.7043.6%3.4%
45Δ135.4847.2%3.6%132.7941.3%2.8%
50Δ134.1345.9%3.0%133.8839.1%2.3%
55Δ132.9646.2%2.6%134.9736.8%1.7%
60Δ131.7846.5%2.2%135.9836.5%1.5%
65Δ130.6046.8%1.8%136.9936.1%1.2%
70Δ129.1647.9%1.5%138.0035.8%1.0%
75Δ127.4349.9%1.2%139.0135.4%0.7%
80Δ125.7151.8%1.0%

20Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
119.00
IV
105.1%
B/E move
12.9%

25Δ

Calls
Pseudo strike
148.26
IV
91.7%
B/E move
12.7%
Puts
Pseudo strike
124.56
IV
79.8%
B/E move
8.7%

30Δ

Calls
Pseudo strike
142.26
IV
70.6%
B/E move
8.2%
Puts
Pseudo strike
IV
B/E move

35Δ

Calls
Pseudo strike
139.12
IV
59.0%
B/E move
5.9%
Puts
Pseudo strike
130.61
IV
45.8%
B/E move
4.0%

40Δ

Calls
Pseudo strike
137.30
IV
53.1%
B/E move
4.7%
Puts
Pseudo strike
131.70
IV
43.6%
B/E move
3.4%

45Δ

Calls
Pseudo strike
135.48
IV
47.2%
B/E move
3.6%
Puts
Pseudo strike
132.79
IV
41.3%
B/E move
2.8%

50Δ

Calls
Pseudo strike
134.13
IV
45.9%
B/E move
3.0%
Puts
Pseudo strike
133.88
IV
39.1%
B/E move
2.3%

55Δ

Calls
Pseudo strike
132.96
IV
46.2%
B/E move
2.6%
Puts
Pseudo strike
134.97
IV
36.8%
B/E move
1.7%

60Δ

Calls
Pseudo strike
131.78
IV
46.5%
B/E move
2.2%
Puts
Pseudo strike
135.98
IV
36.5%
B/E move
1.5%

65Δ

Calls
Pseudo strike
130.60
IV
46.8%
B/E move
1.8%
Puts
Pseudo strike
136.99
IV
36.1%
B/E move
1.2%

70Δ

Calls
Pseudo strike
129.16
IV
47.9%
B/E move
1.5%
Puts
Pseudo strike
138.00
IV
35.8%
B/E move
1.0%

75Δ

Calls
Pseudo strike
127.43
IV
49.9%
B/E move
1.2%
Puts
Pseudo strike
139.01
IV
35.4%
B/E move
0.7%

80Δ

Calls
Pseudo strike
125.71
IV
51.8%
B/E move
1.0%
Puts
Pseudo strike
IV
B/E move

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%