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Gentex Corporation Common Stock GNTX

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Market datapartial · fetched 2026-10-22T23:31:37.884Z

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 · 2026-10-22T22:57:09.613021789Z

FundamentalsAlpha Vantage · unavailable

Share price$21.74
1D+4.3%
AH$20.72$21.03$21.34$21.64$21.955:30 AM6:30 AM9:00 AM1:00 PM2:00 PMGNTX
Sold putSold callAH

Gentex Corporation Common Stock options

Live interpolated GNTX call and put midpoint premiums by absolute delta.Gentex Corporation Common Stock$0.12$1.54$2.97$4.40$5.82$18.47$20.35$22.24$24.13$26.0120Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80ΔOPTION PRICELive GNTX spot · $21.74GNTX PRICE$0.74$0.88$0.74$0.57$0.59$0.83$1.08$1.32$1.56$1.81$2.05$2.30$3.42$0.27$0.36$0.46$0.55$0.65$0.74$0.84$0.93$1.03$1.52$3.25$4.47$5.41
PutsExpensive1.29×
CallsExpensive1.96×
SkewBullish-16.36 pp
Implied moveBullish±$1.91
TiltBearish6.8% PUT
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ31.00122.5%46.0%20.0637.0%9.0%
25Δ28.42112.0%34.8%20.3436.0%8.1%
30Δ25.8279.8%22.2%20.6235.0%7.3%
35Δ23.6748.2%11.5%20.8934.0%6.4%
40Δ22.3532.3%5.5%21.1733.0%5.6%
45Δ22.0134.9%5.1%21.4532.0%4.7%
50Δ21.6837.5%4.7%21.7331.0%3.9%
55Δ21.3440.2%4.2%22.0130.0%3.1%
60Δ21.0142.8%3.8%22.2929.0%2.2%
65Δ20.6745.5%3.4%22.8834.9%1.8%
70Δ20.3448.1%3.0%24.4361.7%2.5%
75Δ20.0050.7%2.6%25.6972.8%2.4%
80Δ18.7859.3%2.1%26.7774.9%1.8%

20Δ

Calls
Pseudo strike
31.00
IV
122.5%
B/E move
46.0%
Puts
Pseudo strike
20.06
IV
37.0%
B/E move
9.0%

25Δ

Calls
Pseudo strike
28.42
IV
112.0%
B/E move
34.8%
Puts
Pseudo strike
20.34
IV
36.0%
B/E move
8.1%

30Δ

Calls
Pseudo strike
25.82
IV
79.8%
B/E move
22.2%
Puts
Pseudo strike
20.62
IV
35.0%
B/E move
7.3%

35Δ

Calls
Pseudo strike
23.67
IV
48.2%
B/E move
11.5%
Puts
Pseudo strike
20.89
IV
34.0%
B/E move
6.4%

40Δ

Calls
Pseudo strike
22.35
IV
32.3%
B/E move
5.5%
Puts
Pseudo strike
21.17
IV
33.0%
B/E move
5.6%

45Δ

Calls
Pseudo strike
22.01
IV
34.9%
B/E move
5.1%
Puts
Pseudo strike
21.45
IV
32.0%
B/E move
4.7%

50Δ

Calls
Pseudo strike
21.68
IV
37.5%
B/E move
4.7%
Puts
Pseudo strike
21.73
IV
31.0%
B/E move
3.9%

55Δ

Calls
Pseudo strike
21.34
IV
40.2%
B/E move
4.2%
Puts
Pseudo strike
22.01
IV
30.0%
B/E move
3.1%

60Δ

Calls
Pseudo strike
21.01
IV
42.8%
B/E move
3.8%
Puts
Pseudo strike
22.29
IV
29.0%
B/E move
2.2%

65Δ

Calls
Pseudo strike
20.67
IV
45.5%
B/E move
3.4%
Puts
Pseudo strike
22.88
IV
34.9%
B/E move
1.8%

70Δ

Calls
Pseudo strike
20.34
IV
48.1%
B/E move
3.0%
Puts
Pseudo strike
24.43
IV
61.7%
B/E move
2.5%

75Δ

Calls
Pseudo strike
20.00
IV
50.7%
B/E move
2.6%
Puts
Pseudo strike
25.69
IV
72.8%
B/E move
2.4%

80Δ

Calls
Pseudo strike
18.78
IV
59.3%
B/E move
2.1%
Puts
Pseudo strike
26.77
IV
74.9%
B/E move
1.8%

Options history

No recorded observations