Options Chain for GENTEX CORP COM (GNTX) - $23.30 as of 2/2/2026 8:03:45 AM 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 | 9.60 | 11.20 | 10.40 | % | 0.83 | 0 | 0 | 3.67 | 1.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 15.00 | 7.10 | 8.60 | 7.85 | % | 0.52 | 0 | 0 | 2.88 | 1.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 17.50 | 4.80 | 7.10 | 5.95 | % | 0.34 | 0 | 0 | 2.16 | 1.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 20.00 | 2.20 | 3.90 | 3.05 | 4.52 | 0.00 | 0.00% | 0.15 | 0 | 12 | 1.42 | 0.96 | 0.04 | -0.01 | 1/6/2026 | 1/30/2026 3:59:54 PM EST |
| 22.50 | 0.85 | 1.45 | 1.15 | 1.72 | 0.00 | 0.00% | 0.05 | 0 | 3 | 1.05 | 0.63 | 0.20 | -0.02 | 1/29/2026 | 1/30/2026 3:59:54 PM EST |
| 25.00 | 0.00 | 0.50 | 0.25 | 0.10 | 0.00 | 0.00% | 0.01 | 0 | 120 | 0.42 | 0.17 | 0.14 | -0.01 | 1/30/2026 | 1/30/2026 3:59:54 PM EST |
| 27.50 | 0.00 | 0.50 | 0.25 | 0.11 | 0.00 | 0.00% | 0.01 | 0 | 17 | 1.10 | 0.02 | 0.02 | 0.00 | 1/12/2026 | 1/30/2026 3:59:54 PM EST |
| 30.00 | 0.00 | 0.25 | 0.13 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 1 | 0.68 | 0.00 | 0.00 | 0.00 | 1/6/2026 | 1/30/2026 3:59:54 PM EST |
| 32.50 | 0.00 | 0.75 | 0.38 | % | 0.01 | 0 | 0 | 0.74 | 0.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 35.00 | 0.00 | 0.75 | 0.38 | % | 0.01 | 0 | 0 | 2.17 | 0.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 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 | 3.77 | 0.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 15.00 | 0.00 | 0.75 | 0.38 | % | 0.03 | 0 | 0 | 1.09 | 0.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 17.50 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 1.77 | 0.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 20.00 | 0.00 | 1.75 | 0.88 | 0.10 | 0.00 | 0.00% | 0.04 | 0 | 4 | 0.55 | -0.04 | 0.04 | -0.01 | 1/13/2026 | 1/30/2026 3:59:54 PM EST |
| 22.50 | 0.10 | 0.35 | 0.23 | 0.40 | 0.00 | 0.00% | 0.01 | 0 | 169 | 0.35 | -0.37 | 0.20 | -0.02 | 1/30/2026 | 1/30/2026 3:59:54 PM EST |
| 25.00 | 0.85 | 2.55 | 1.70 | 2.07 | 0.00 | 0.00% | 0.07 | 0 | 3 | 0.76 | -0.83 | 0.14 | -0.01 | 1/30/2026 | 1/30/2026 3:59:54 PM EST |
| 27.50 | 3.80 | 5.30 | 4.55 | % | 0.17 | 0 | 0 | 1.15 | -0.98 | 0.02 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 30.00 | 6.40 | 7.90 | 7.15 | 6.60 | 0.00 | 0.00% | 0.24 | 0 | 1 | 1.77 | -1.00 | 0.00 | 0.00 | 1/2/2026 | 1/30/2026 3:59:54 PM EST |
| 32.50 | 8.90 | 10.40 | 9.65 | % | 0.30 | 0 | 0 | 2.15 | -1.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST | |||
| 35.00 | 11.00 | 13.30 | 12.15 | % | 0.35 | 0 | 0 | 2.15 | -1.00 | 0.00 | 0.00 | 1/30/2026 3:59:54 PM EST |