Options Chain for FIRST INTST BANCSYSTEM INC COM (FIBK) - $37.83 as of 10/27/2026 8:56:40 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17.50 | 19.30 | 21.30 | 20.30 | % | 1.16 | 0 | 0 | 1.88 | 1.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 20.00 | 16.80 | 18.70 | 17.75 | % | 0.89 | 0 | 0 | 1.56 | 1.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 22.50 | 14.30 | 16.20 | 15.25 | % | 0.68 | 0 | 0 | 1.33 | 1.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 25.00 | 11.80 | 13.70 | 12.75 | % | 0.51 | 0 | 0 | 1.12 | 1.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 30.00 | 6.90 | 8.80 | 7.85 | % | 0.26 | 0 | 0 | 0.78 | 1.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 35.00 | 2.45 | 4.10 | 3.28 | 3.00 | 0.00 | 0.00% | 0.09 | 0 | 29 | 0.48 | 0.79 | 0.09 | -0.01 | 10/26/2026 | 10/27/2026 3:59:52 PM EST |
| 40.00 | 0.05 | 1.10 | 0.58 | 0.60 | +0.20 | +50.00% | 0.01 | 3 | 84 | 0.24 | 0.27 | 0.09 | -0.01 | 10/27/2026 | 10/27/2026 3:59:52 PM EST |
| 45.00 | 0.00 | 0.55 | 0.28 | 0.50 | 0.00 | 0.00% | 0.01 | 0 | 168 | 0.46 | 0.03 | 0.02 | 0.00 | 8/13/2026 | 10/27/2026 3:59:52 PM EST |
| 50.00 | 0.00 | 0.45 | 0.23 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 2 | 0.59 | 0.00 | 0.00 | 0.00 | 10/2/2026 | 10/27/2026 3:59:52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17.50 | 0.00 | 0.45 | 0.23 | % | 0.01 | 0 | 0 | 1.41 | 0.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 20.00 | 0.00 | 0.45 | 0.23 | % | 0.01 | 0 | 0 | 1.20 | 0.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 22.50 | 0.00 | 0.50 | 0.25 | % | 0.01 | 0 | 0 | 1.04 | 0.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST | |||
| 25.00 | 0.00 | 0.55 | 0.28 | 0.50 | 0.00 | 0.00% | 0.01 | 0 | 3 | 0.89 | 0.00 | 0.00 | 0.00 | 6/17/2026 | 10/27/2026 3:59:52 PM EST |
| 30.00 | 0.00 | 0.60 | 0.30 | 0.50 | 0.00 | 0.00% | 0.01 | 0 | 1,003 | 0.59 | 0.00 | 0.00 | 0.00 | 8/14/2026 | 10/27/2026 3:59:52 PM EST |
| 35.00 | 0.15 | 1.30 | 0.73 | 1.80 | 0.00 | 0.00% | 0.02 | 0 | 16 | 0.30 | -0.21 | 0.09 | -0.01 | 10/9/2026 | 10/27/2026 3:59:52 PM EST |
| 40.00 | 2.15 | 3.90 | 3.03 | % | 0.08 | 0 | 0 | 0.42 | -0.73 | 0.09 | -0.01 | 10/27/2026 3:59:52 PM EST | |||
| 45.00 | 6.40 | 8.80 | 7.60 | 9.13 | 0.00 | 0.00% | 0.17 | 0 | 1 | 0.65 | -0.97 | 0.02 | 0.00 | 6/15/2026 | 10/27/2026 3:59:52 PM EST |
| 50.00 | 11.60 | 13.80 | 12.70 | % | 0.25 | 0 | 0 | 0.85 | -1.00 | 0.00 | 0.00 | 10/27/2026 3:59:52 PM EST |