Options Chain for GENTEX CORP COM (GNTX) - $23.45 as of 5/8/2026 7:35:06 PM EST
Calls
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.50 | 10.00 | 12.90 | 11.45 | 9.65 | 0.00 | 0.00% | 0.92 | 0 | 3 | 6.38 | 1.00 | 0.00 | 0.00 | 4/9/2026 | 5/8/2026 3:59:53 PM EST |
| 15.00 | 7.50 | 10.40 | 8.95 | % | 0.60 | 0 | 0 | 5.04 | 1.00 | 0.00 | 0.00 | 5/8/2026 3:59:53 PM EST | |||
| 17.50 | 5.00 | 6.90 | 5.95 | 3.94 | 0.00 | 0.00% | 0.34 | 0 | 36 | 2.78 | 0.99 | 0.01 | -0.01 | 4/7/2026 | 5/8/2026 3:59:53 PM EST |
| 20.00 | 2.50 | 3.90 | 3.20 | 2.49 | 0.00 | 0.00% | 0.16 | 0 | 43 | 1.41 | 0.92 | 0.05 | -0.03 | 4/8/2026 | 5/8/2026 3:59:53 PM EST |
| 22.50 | 0.05 | 2.95 | 1.50 | 0.82 | 0.00 | 0.00% | 0.07 | 0 | 104 | 1.96 | 0.69 | 0.18 | -0.05 | 4/29/2026 | 5/8/2026 3:59:53 PM EST |
| 25.00 | 0.00 | 0.20 | 0.10 | 0.10 | +0.05 | +100.00% | 0.00 | 5 | 186 | 0.56 | 0.25 | 0.15 | -0.05 | 5/8/2026 | 5/8/2026 3:59:53 PM EST |
| 27.50 | 0.00 | 0.25 | 0.13 | % | 0.00 | 0 | 0 | 0.82 | 0.09 | 0.06 | -0.03 | 5/8/2026 3:59:53 PM EST | |||
| 30.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 1 | 0.99 | 0.03 | 0.02 | -0.01 | 4/9/2026 | 5/8/2026 3:59:53 PM EST |
Puts
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.50 | 0.00 | 0.75 | 0.38 | % | 0.03 | 0 | 0 | 4.31 | 0.00 | 0.00 | 0.00 | 5/8/2026 3:59:53 PM EST | |||
| 15.00 | 0.00 | 0.20 | 0.10 | 0.03 | 0.00 | 0.00% | 0.01 | 0 | 1 | 2.25 | 0.00 | 0.00 | 0.00 | 4/23/2026 | 5/8/2026 3:59:53 PM EST |
| 17.50 | 0.00 | 0.15 | 0.08 | 0.07 | 0.00 | 0.00% | 0.00 | 0 | 46 | 1.49 | -0.01 | 0.01 | -0.01 | 4/23/2026 | 5/8/2026 3:59:53 PM EST |
| 20.00 | 0.00 | 0.25 | 0.13 | 0.10 | +0.02 | +25.00% | 0.01 | 1 | 13 | 1.09 | -0.08 | 0.05 | -0.03 | 5/8/2026 | 5/8/2026 3:59:53 PM EST |
| 22.50 | 0.00 | 2.25 | 1.13 | 0.40 | 0.00 | 0.00% | 0.05 | 0 | 186 | 2.12 | -0.31 | 0.18 | -0.05 | 5/1/2026 | 5/8/2026 3:59:53 PM EST |
| 25.00 | 0.85 | 3.10 | 1.98 | 2.45 | 0.00 | 0.00% | 0.08 | 0 | 0 | 1.65 | -0.75 | 0.15 | -0.05 | 4/22/2026 | 5/8/2026 3:59:53 PM EST |
| 27.50 | 2.15 | 5.10 | 3.63 | % | 0.13 | 0 | 0 | 1.81 | -0.91 | 0.06 | -0.03 | 5/8/2026 3:59:53 PM EST | |||
| 30.00 | 5.80 | 7.70 | 6.75 | % | 0.23 | 0 | 0 | 2.35 | -0.97 | 0.02 | -0.01 | 5/8/2026 3:59:53 PM EST |