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GNTX
Gentex Corp
stock NASDAQ

At Close

Aug 3, 2026 3:59:57 PM EDT

23.46USD+0.428%(+0.10)1,943,809

23.45Bid 23.49Ask 0.04Spread

Pre-market

Aug 3, 2026 9:25:30 AM EDT

23.38USD+0.086%(+0.02)625

After-hours

Aug 3, 2026 4:00:30 PM EDT

23.45USD-0.043%(-0.01)335,135

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Dec 18, 2026 Mar 19, 2027

ITM/OTM for Aug 21, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
86	354	178	206

GNTX Aug 21, 2026 Exp. - Volume by Strike

Puts

Calls

GNTX Aug 21, 2026 Exp. - Open Interest by Strike

Puts

Calls

GNTX Aug 21, 2026 Exp. - Max Pain @ $25.00

Puts

Calls

GNTX Aug 21, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
37.50 C	0	0%	0			GNTX260821C00037500
35.00 C	0.01	0%	1	1	06-30	GNTX260821C00035000
32.50 C	0	0%	0			GNTX260821C00032500
30.00 C	0.05	0%	5	5	07-20	GNTX260821C00030000
27.50 C	0.11	+120.00%	2	93	07-29	GNTX260821C00027500
25.00 C	0.20	-39.39%	1	255	07-30	GNTX260821C00025000
22.50 C	2.00	+21.21%	20	82	07-29	GNTX260821C00022500
20.00 C	2.65	-31.17%	2	3	07-24	GNTX260821C00020000
17.50 C	0	0%	0			GNTX260821C00017500
15.00 C	10.84	0%	2	1	06-18	GNTX260821C00015000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
37.50 P	0	0%	0			GNTX260821P00037500
35.00 P	0	0%	0			GNTX260821P00035000
32.50 P	0	0%	0			GNTX260821P00032500
30.00 P	0	0%	0			GNTX260821P00030000
27.50 P	0	0%	0			GNTX260821P00027500
25.00 P	1.25	-26.47%	3	178	07-29	GNTX260821P00025000
22.50 P	0.25	+38.89%	2	138	07-31	GNTX260821P00022500
20.00 P	0.05	-66.67%	10	22	07-31	GNTX260821P00020000
17.50 P	0.10	+100.00%	3	44	07-24	GNTX260821P00017500
15.00 P	0.05	-37.50%	2	2	07-24	GNTX260821P00015000

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