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Protagonist Therapeutics, Inc. Common Stock PTGX

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Market datapartial · fetched 2026-10-22T23:24:06.625Z

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 and implied move: recorded expiration-specific observations.

History data

PriceAlpaca · sip · 2026-10-22T21:45:32.268007353Z

FundamentalsAlpha Vantage · unavailable

Share price$142.32
1D+1.3%
AH$137$138$140$141$1425:30 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$1.35$11.49$21.62$31.76$41.89$114.48$127.46$140.45$153.43$166.4220Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80ΔOPTION PRICELive PTGX spot · $142.32PTGX PRICE$2.45$2.58$2.92$3.49$4.01$4.53$5.30$6.10$6.91$7.66$8.41$9.16$10.05$2.55$3.19$4.16$5.27$6.47$7.92$9.52$11.45$13.55$16.14$20.44$26.31$38.97
PutsExpensive1.19×
CallsCheap0.78×
SkewBearish+19.98 pp
Implied moveBearish±$14.81
TiltBearish38.6% PUT
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ166.7559.3%18.9%127.1053.5%12.5%
25Δ157.3646.3%12.4%131.3048.9%10.0%
30Δ152.7240.4%9.4%133.9050.0%8.8%
35Δ149.9139.3%7.8%136.4950.9%7.8%
40Δ147.6137.3%6.5%139.0751.6%6.8%
45Δ145.3235.3%5.3%141.7352.5%6.0%
50Δ143.4934.7%4.5%144.4353.7%5.2%
55Δ141.7334.4%3.9%147.3954.8%4.5%
60Δ139.9834.1%3.2%150.4756.0%3.8%
65Δ138.4732.6%2.7%153.9757.2%3.2%
70Δ136.9731.0%2.2%158.9461.9%2.7%
75Δ135.4729.5%1.6%165.4567.8%2.2%
80Δ134.0727.4%1.3%178.5282.7%1.9%

20Δ

Calls
Pseudo strike
166.75
IV
59.3%
B/E move
18.9%
Puts
Pseudo strike
127.10
IV
53.5%
B/E move
12.5%

25Δ

Calls
Pseudo strike
157.36
IV
46.3%
B/E move
12.4%
Puts
Pseudo strike
131.30
IV
48.9%
B/E move
10.0%

30Δ

Calls
Pseudo strike
152.72
IV
40.4%
B/E move
9.4%
Puts
Pseudo strike
133.90
IV
50.0%
B/E move
8.8%

35Δ

Calls
Pseudo strike
149.91
IV
39.3%
B/E move
7.8%
Puts
Pseudo strike
136.49
IV
50.9%
B/E move
7.8%

40Δ

Calls
Pseudo strike
147.61
IV
37.3%
B/E move
6.5%
Puts
Pseudo strike
139.07
IV
51.6%
B/E move
6.8%

45Δ

Calls
Pseudo strike
145.32
IV
35.3%
B/E move
5.3%
Puts
Pseudo strike
141.73
IV
52.5%
B/E move
6.0%

50Δ

Calls
Pseudo strike
143.49
IV
34.7%
B/E move
4.5%
Puts
Pseudo strike
144.43
IV
53.7%
B/E move
5.2%

55Δ

Calls
Pseudo strike
141.73
IV
34.4%
B/E move
3.9%
Puts
Pseudo strike
147.39
IV
54.8%
B/E move
4.5%

60Δ

Calls
Pseudo strike
139.98
IV
34.1%
B/E move
3.2%
Puts
Pseudo strike
150.47
IV
56.0%
B/E move
3.8%

65Δ

Calls
Pseudo strike
138.47
IV
32.6%
B/E move
2.7%
Puts
Pseudo strike
153.97
IV
57.2%
B/E move
3.2%

70Δ

Calls
Pseudo strike
136.97
IV
31.0%
B/E move
2.2%
Puts
Pseudo strike
158.94
IV
61.9%
B/E move
2.7%

75Δ

Calls
Pseudo strike
135.47
IV
29.5%
B/E move
1.6%
Puts
Pseudo strike
165.45
IV
67.8%
B/E move
2.2%

80Δ

Calls
Pseudo strike
134.07
IV
27.4%
B/E move
1.3%
Puts
Pseudo strike
178.52
IV
82.7%
B/E move
1.9%

Options history

No recorded observations