Options Chain for GENTEX CORP COM (GNTX) - $27.23 as of 8/13/2025 3:26:53 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 | 13.60 | 17.40 | 15.50 | % | 1.24 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 15.00 | 11.10 | 14.90 | 13.00 | % | 0.87 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 17.50 | 9.00 | 12.40 | 10.70 | % | 0.61 | 0 | 0 | 8.93 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 20.00 | 7.20 | 9.90 | 8.55 | 7.25 | 0.00 | 0.00% | 0.43 | 0 | 39 | 7.20 | 1.00 | 0.00 | 0.00 | 7/28/2025 | 8/13/2025 3:59:45 PM EST |
| 22.50 | 5.00 | 7.40 | 6.20 | 4.30 | 0.00 | 0.00% | 0.28 | 0 | 188 | 5.64 | 1.00 | 0.00 | 0.00 | 8/12/2025 | 8/13/2025 3:59:45 PM EST |
| 25.00 | 2.80 | 2.90 | 2.85 | 2.76 | +0.61 | +28.38% | 0.11 | 3 | 562 | 0.98 | 1.00 | 0.00 | 0.00 | 8/13/2025 | 8/13/2025 3:59:45 PM EST |
| 27.50 | 0.20 | 0.55 | 0.38 | 0.20 | +0.15 | +300.00% | 0.01 | 20 | 190 | 0.38 | 0.83 | 0.60 | -0.03 | 8/13/2025 | 8/13/2025 3:59:45 PM EST |
| 30.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 141 | 0.69 | 0.00 | 0.00 | 0.00 | 8/4/2025 | 8/13/2025 3:59:45 PM EST |
| 32.50 | 0.00 | 0.85 | 0.43 | % | 0.01 | 0 | 0 | 2.52 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 35.00 | 0.00 | 0.65 | 0.33 | 0.02 | 0.00 | 0.00% | 0.01 | 0 | 20 | 3.50 | 0.00 | 0.00 | 0.00 | 7/25/2025 | 8/13/2025 3:59:45 PM EST |
| 37.50 | 0.00 | 0.65 | 0.33 | % | 0.01 | 0 | 0 | 4.26 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 40.00 | 0.00 | 0.65 | 0.33 | % | 0.01 | 0 | 0 | 4.79 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 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 | 0.65 | 0.33 | % | 0.03 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 15.00 | 0.00 | 0.65 | 0.33 | % | 0.02 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 17.50 | 0.00 | 0.65 | 0.33 | % | 0.02 | 0 | 0 | 5.77 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 20.00 | 0.00 | 0.65 | 0.33 | 0.04 | 0.00 | 0.00% | 0.02 | 0 | 2 | 4.95 | 0.00 | 0.00 | 0.00 | 7/24/2025 | 8/13/2025 3:59:45 PM EST |
| 22.50 | 0.00 | 0.05 | 0.03 | 0.01 | 0.00 | 0.00% | 0.00 | 0 | 605 | 1.66 | 0.00 | 0.00 | 0.00 | 8/8/2025 | 8/13/2025 3:59:45 PM EST |
| 25.00 | 0.00 | 0.10 | 0.05 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 3,114 | 0.96 | 0.00 | 0.00 | 0.00 | 8/6/2025 | 8/13/2025 3:59:45 PM EST |
| 27.50 | 0.00 | 0.25 | 0.13 | 0.14 | -0.83 | -85.57% | 0.00 | 1 | 37 | 0.38 | -0.17 | 0.60 | -0.03 | 8/13/2025 | 8/13/2025 3:59:45 PM EST |
| 30.00 | 2.05 | 3.20 | 2.63 | 3.92 | 0.00 | 0.00% | 0.09 | 0 | 1 | 2.31 | -1.00 | 0.00 | 0.00 | 8/1/2025 | 8/13/2025 3:59:45 PM EST |
| 32.50 | 4.50 | 5.80 | 5.15 | 5.17 | 0.00 | 0.00% | 0.16 | 0 | 0 | 3.31 | -1.00 | 0.00 | 0.00 | 7/28/2025 | 8/13/2025 3:59:45 PM EST |
| 35.00 | 6.50 | 8.40 | 7.45 | % | 0.21 | 0 | 0 | 4.17 | -1.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 37.50 | 9.50 | 10.90 | 10.20 | % | 0.27 | 0 | 0 | 4.80 | -1.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST | |||
| 40.00 | 11.90 | 13.70 | 12.80 | % | 0.32 | 0 | 0 | 5.81 | -1.00 | 0.00 | 0.00 | 8/13/2025 3:59:45 PM EST |