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Protagonist Therapeutics, Inc. Common Stock PTGX

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Market datapartial · fetched 2026-10-22T18:29:42.506Z

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 · 2026-10-22T18:27:26.663408183Z

FundamentalsAlpha Vantage · unavailable

Share price$139.68
1D+1.4%
$137$138$140$141$1425:30 AM6:30 AM9:00 AM1:00 PMPTGX
Sold putSold call

Protagonist Therapeutics, Inc. Common Stock options

Live interpolated PTGX call and put midpoint premiums by absolute delta.Protagonist Therapeutics, Inc. Common Stock$2.09$6.62$11.14$15.67$20.20$116.37$127.95$139.52$151.10$162.6720Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80ΔOPTION PRICELive PTGX spot · $139.68PTGX PRICE$3.97$4.91$5.86$6.80$7.74$8.69$9.71$11.21$12.71$15.49$2.58$2.71$3.90$5.10$6.29$7.49$8.69$9.88$11.08$12.27$13.83$16.36$18.89
PutsCheap0.94×
CallsCheap0.93×
SkewBearish+1.49 pp
Implied moveBearish±$15.49
TiltBearish15.5% PUT
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ122.7358.3%14.0%
25Δ130.0143.3%8.9%
30Δ132.3043.4%8.1%
35Δ148.2843.7%9.0%134.5943.5%7.3%
40Δ146.0143.6%8.1%136.8843.6%6.5%
45Δ143.7543.5%7.1%139.1743.7%5.7%
50Δ141.4843.4%6.2%141.4643.8%4.9%
55Δ139.2143.3%5.2%143.7543.9%4.2%
60Δ136.9543.2%4.3%146.0444.0%3.4%
65Δ134.6843.1%3.4%148.3244.1%2.6%
70Δ132.3743.1%2.8%150.8544.4%1.9%
75Δ130.0643.0%2.2%154.0245.2%1.4%
80Δ126.7045.4%1.8%157.1844.7%1.0%

20Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
122.73
IV
58.3%
B/E move
14.0%

25Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
130.01
IV
43.3%
B/E move
8.9%

30Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
132.30
IV
43.4%
B/E move
8.1%

35Δ

Calls
Pseudo strike
148.28
IV
43.7%
B/E move
9.0%
Puts
Pseudo strike
134.59
IV
43.5%
B/E move
7.3%

40Δ

Calls
Pseudo strike
146.01
IV
43.6%
B/E move
8.1%
Puts
Pseudo strike
136.88
IV
43.6%
B/E move
6.5%

45Δ

Calls
Pseudo strike
143.75
IV
43.5%
B/E move
7.1%
Puts
Pseudo strike
139.17
IV
43.7%
B/E move
5.7%

50Δ

Calls
Pseudo strike
141.48
IV
43.4%
B/E move
6.2%
Puts
Pseudo strike
141.46
IV
43.8%
B/E move
4.9%

55Δ

Calls
Pseudo strike
139.21
IV
43.3%
B/E move
5.2%
Puts
Pseudo strike
143.75
IV
43.9%
B/E move
4.2%

60Δ

Calls
Pseudo strike
136.95
IV
43.2%
B/E move
4.3%
Puts
Pseudo strike
146.04
IV
44.0%
B/E move
3.4%

65Δ

Calls
Pseudo strike
134.68
IV
43.1%
B/E move
3.4%
Puts
Pseudo strike
148.32
IV
44.1%
B/E move
2.6%

70Δ

Calls
Pseudo strike
132.37
IV
43.1%
B/E move
2.8%
Puts
Pseudo strike
150.85
IV
44.4%
B/E move
1.9%

75Δ

Calls
Pseudo strike
130.06
IV
43.0%
B/E move
2.2%
Puts
Pseudo strike
154.02
IV
45.2%
B/E move
1.4%

80Δ

Calls
Pseudo strike
126.70
IV
45.4%
B/E move
1.8%
Puts
Pseudo strike
157.18
IV
44.7%
B/E move
1.0%

Options history

No recorded observations