Options Chain for GENTEX CORP COM (GNTX) - $22.97 as of 5/12/2026 9:09:49 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 | 9.50 | 12.70 | 11.10 | % | 0.89 | 0 | 0 | 2.73 | 1.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 PM EST | |||
| 15.00 | 6.30 | 10.20 | 8.25 | 6.44 | 0.00 | 0.00% | 0.55 | 0 | 4 | 2.19 | 1.00 | 0.00 | 0.00 | 4/7/2026 | 5/12/2026 3:59:43 PM EST |
| 17.50 | 3.90 | 6.90 | 5.40 | 6.10 | 0.00 | 0.00% | 0.31 | 0 | 16 | 1.35 | 0.99 | 0.01 | 0.00 | 5/6/2026 | 5/12/2026 3:59:43 PM EST |
| 20.00 | 1.90 | 4.50 | 3.20 | % | 0.16 | 0 | 1 | 0.99 | 0.88 | 0.07 | -0.01 | 5/12/2026 3:59:43 PM EST | |||
| 22.50 | 1.05 | 1.40 | 1.23 | 1.40 | +0.06 | +4.48% | 0.05 | 10 | 186 | 0.31 | 0.62 | 0.17 | -0.01 | 5/12/2026 | 5/12/2026 3:59:43 PM EST |
| 25.00 | 0.10 | 0.25 | 0.18 | 0.20 | -0.10 | -33.34% | 0.01 | 2 | 733 | 0.26 | 0.29 | 0.12 | -0.01 | 5/12/2026 | 5/12/2026 3:59:43 PM EST |
| 27.50 | 0.00 | 0.40 | 0.20 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 65 | 0.57 | 0.08 | 0.05 | -0.01 | 5/11/2026 | 5/12/2026 3:59:43 PM EST |
| 30.00 | 0.00 | 0.50 | 0.25 | 0.22 | 0.00 | 0.00% | 0.01 | 0 | 50 | 0.79 | 0.02 | 0.02 | 0.00 | 4/17/2026 | 5/12/2026 3:59:43 PM EST |
| 32.50 | 0.00 | 0.95 | 0.48 | 0.29 | 0.00 | 0.00% | 0.01 | 0 | 3 | 1.16 | 0.00 | 0.00 | 0.00 | 4/24/2026 | 5/12/2026 3:59:43 PM EST |
| 35.00 | 0.00 | 1.75 | 0.88 | % | 0.03 | 0 | 1 | 1.64 | 0.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 PM EST | |||
| 37.50 | 0.00 | 0.95 | 0.48 | % | 0.01 | 0 | 1 | 1.42 | 0.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 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 | 0.05 | 0.03 | % | 0.00 | 0 | 0 | 0.99 | 0.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 PM EST | |||
| 15.00 | 0.00 | 0.05 | 0.03 | % | 0.00 | 0 | 0 | 0.72 | 0.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 PM EST | |||
| 17.50 | 0.00 | 0.95 | 0.48 | 0.20 | 0.00 | 0.00% | 0.03 | 0 | 40 | 1.15 | -0.01 | 0.01 | 0.00 | 4/15/2026 | 5/12/2026 3:59:43 PM EST |
| 20.00 | 0.00 | 0.35 | 0.18 | 0.22 | 0.00 | 0.00% | 0.01 | 0 | 48 | 0.50 | -0.12 | 0.07 | -0.01 | 5/4/2026 | 5/12/2026 3:59:43 PM EST |
| 22.50 | 0.50 | 0.80 | 0.65 | 0.50 | 0.00 | 0.00% | 0.03 | 0 | 47 | 0.31 | -0.38 | 0.17 | -0.01 | 5/6/2026 | 5/12/2026 3:59:43 PM EST |
| 25.00 | 0.85 | 3.50 | 2.18 | 2.10 | 0.00 | 0.00% | 0.09 | 0 | 50 | 0.80 | -0.71 | 0.12 | -0.01 | 4/24/2026 | 5/12/2026 3:59:43 PM EST |
| 27.50 | 2.90 | 5.60 | 4.25 | % | 0.15 | 0 | 0 | 0.90 | -0.92 | 0.05 | -0.01 | 5/12/2026 3:59:43 PM EST | |||
| 30.00 | 5.30 | 8.10 | 6.70 | % | 0.22 | 0 | 0 | 1.09 | -0.98 | 0.02 | 0.00 | 5/12/2026 3:59:43 PM EST | |||
| 32.50 | 8.00 | 10.60 | 9.30 | % | 0.29 | 0 | 0 | 1.26 | -1.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 PM EST | |||
| 35.00 | 10.50 | 13.10 | 11.80 | % | 0.34 | 0 | 0 | 1.41 | -1.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 PM EST | |||
| 37.50 | 13.00 | 15.60 | 14.30 | % | 0.38 | 0 | 0 | 1.54 | -1.00 | 0.00 | 0.00 | 5/12/2026 3:59:43 PM EST |