Gentex Corporation (GNTX)
NASDAQ: GNTX
· Real-Time Price · USD
28.64
0.16 (0.56%)
At close: Sep 08, 2025, 10:42 AM
GNTX Option Overview
Overview for all option chains of GNTX. As of September 07, 2025, GNTX options have an IV of 112.83% and an IV rank of 189.71%. The volume is 79 contracts, which is 192.68% of average daily volume of 41 contracts. The volume put-call ratio is 1.19, indicating a neutral sentiment in the market.
Implied Volatility
Implied Volatility (30d)
112.83%IV Rank
189.71%Historical Volatility
47.86%IV Low
34.74% on Jan 31, 2025IV High
75.9% on Sep 03, 2025Open Interest (OI)
Today's Open Interest
3,775Put-Call Ratio
0.26Put Open Interest
770Call Open Interest
3,005Open Interest Avg (30-day)
3,329Today vs Open Interest Avg (30-day)
113.4%Option Volume
Today's Volume
79Put-Call Ratio
1.19Put Volume
43Call Volume
36Volume Avg (30-day)
41Today vs Volume Avg (30-day)
192.68%Option Chain Statistics
This table provides a comprehensive overview of all GNTX options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Sep 19, 2025 | 8 | 4 | 0.5 | 1,258 | 165 | 0.13 | 112.83% | 22.5 |
| Oct 17, 2025 | 8 | 20 | 2.5 | 77 | 41 | 0.53 | 70.03% | 25 |
| Dec 19, 2025 | 17 | 18 | 1.06 | 1,269 | 523 | 0.41 | 43.75% | 22.5 |
| Jan 16, 2026 | 0 | 0 | 0 | 237 | 0 | 0 | 3.1% | 50 |
| Mar 20, 2026 | 3 | 1 | 0.33 | 164 | 41 | 0.25 | 31.31% | 25 |
| Dec 18, 2026 | 0 | 0 | 0 | 0 | 0 | 0 | 4.35% | 65 |