Option chain for Gentex (GNTX): calls and puts for every expiration and strike, with quotes, volume, open interest, implied volatility and greeks. As of Nov 6, 2026, GNTX had 4 option expirations, from Nov 20, 2026 to Jun 17, 2027, and 124 contracts traded that day. The nearest expiration, Nov 20, 2026, had an at-the-money implied volatility of 28.0% (+9% on the day) and 5 contracts traded; the busiest was Dec 18, 2026, with 66.

For the latest figures, see GNTX options overview.

Key numbers

Expirations: at-the-money implied volatility, change on the day, volume

Nov 20, 2026 (14 days): ATM IV 28.0% (+9%), volume 5
Dec 18, 2026 (42 days): ATM IV 26.1% (-13%), volume 66
Mar 19, 2027 (133 days): ATM IV 20.5% (-33%), volume 53
Jun 17, 2027 (223 days): ATM IV 20.9% (-31%), volume 0

Data as of November 6, 2026.

GNTX Option Chain

Detailed and comprehensive option chain for each expiration listed for GNTX. Includes volume, open interest, implied volatility, and bid/ask for each strike. Investigate further by clicking on a strike and seeing trade activity, volatility movement, and yesterday's closing values. Use the built-in options profit calculator to see the profit or loss of any GNTX options strategy.

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