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Gentex (GNTX) closed at $21.00 on October 21, 2026, down 1.2% from the previous close, on volume of 2,871,051 shares (30-day average 2,354,027).

Key numbers
  • Last close: $21.00 (October 21, 2026)
  • 52-week range: $20.48 to $26.99
  • Market value: $4.8 billion
  • 30-day implied volatility (IV30): 30.7%
  • Option volume: 270 contracts (70 calls, 200 puts); 30-day average 74
  • Next earnings: October 23, 2026, before the market opens (confirmed)

Data as of October 21, 2026.

GNTX Stock Summary and Trading Ideas (Gentex | NASDAQ:GNTX)

Charts for Today's Stock Price and Implied Volatility in Gentex

Stock Price & Volume | Full Chart

30-Day Implied Volatility | IV30 Full Chart

Trade Ideas for Best Option Strategies for GNTX by Theoretical Edge and Win Rates

Sentiment

Trading Statistics

Key Ratios

Gentex (GNTX) Frequently Asked Questions

What does Gentex do?

Gentex was founded in 1974 to produce smoke-detection equipment. The company sold its first glare-control interior mirror in 1982 and its first model using electrochromic technology in 1987. Automotive revenue was about 89% of total revenue in 2025, down from 98% in 2024 due to the Voxx acquisition in April 2025. The company is constantly developing new applications for the technology to remain on top. Sales in 2025 totaled about $2.5 billion with 44.8 million mirrors shipped. The unit mix breaks out as 64% interior and 36% exterior versus 31% exterior in 2019. The company is based in Zeeland, Michigan.

What symbol and exchange does Gentex shares trade?

Gentex trades on the NASDAQ stock market under the symbol GNTX.

What is Gentex stock price doing today?

As of October 22, 2026, GNTX stock price climbed to $21.48 with 1,257,382 million shares trading.

What is Gentex's Beta?

GNTX has a beta of 0.27, meaning it tends to be less sensitive to market movements. GNTX has a correlation of 0.02 to the broad based SPY ETF.

How much is Gentex worth?

GNTX has a market cap of $4.88 billion. This is considered a Mid Cap stock.

How much money does Gentex make?

Last quarter Gentex reported $651 million in Revenue and $.58 earnings per share. This fell short of revenue expectation by $-16 million and exceeded earnings estimates by $.08.

What is the highest and lowest price Gentex traded in the last 3 year period?

In the last 3 years, GNTX traded as high as $37.58 and as low as $20.28.

What are the top ETFs holding Gentex?

The top ETF exchange traded funds that GNTX belongs to (by Net Assets): AVUV, IJH, VTI, VB, DFAT.

Is Gentex (GNTX) a good investment?

GNTX has underperformed the market in the last year with a return of -18.5%, while the SPY ETF gained +14.7%. In the last 3 month period, GNTX fell short of the market, returning -9.8%, while SPY returned +2.2%. However, in the most recent 2 weeks GNTX has outperformed the stock market by returning +1.9%, while SPY returned -1.9%.

What are the support and resistance levels for Gentex (GNTX)?

GNTX support price is $20.70 and resistance is $21.30 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that GNTX shares will trade within this expected range on the day.

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