Options Chain for FIRST INTST BANCSYSTEM INC COM (FIBK) - $35.64 as of 6/18/2026 4:48:55 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 | 17.60 | 20.20 | 18.90 | % | 1.08 | 0 | 0 | 2.43 | 1.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 20.00 | 15.10 | 17.70 | 16.40 | 15.50 | 0.00 | 0.00% | 0.82 | 0 | 4 | 2.07 | 1.00 | 0.00 | 0.00 | 6/2/2026 | 6/18/2026 4:00:02 PM EST |
| 22.50 | 12.60 | 15.40 | 14.00 | % | 0.62 | 0 | 0 | 1.85 | 1.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 25.00 | 10.10 | 12.80 | 11.45 | % | 0.46 | 0 | 0 | 1.51 | 1.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 30.00 | 5.30 | 7.60 | 6.45 | 6.14 | +0.45 | +7.91% | 0.21 | 2 | 2 | 0.91 | 1.00 | 0.00 | 0.00 | 6/18/2026 | 6/18/2026 4:00:02 PM EST |
| 35.00 | 1.00 | 3.20 | 2.10 | 1.70 | 0.00 | 0.00% | 0.06 | 0 | 5 | 0.59 | 0.70 | 0.12 | -0.02 | 6/4/2026 | 6/18/2026 4:00:02 PM EST |
| 40.00 | 0.00 | 0.40 | 0.20 | 0.25 | 0.00 | 0.00% | 0.01 | 0 | 39 | 0.36 | 0.11 | 0.07 | -0.01 | 6/11/2026 | 6/18/2026 4:00:02 PM EST |
| 45.00 | 0.00 | 0.90 | 0.45 | % | 0.01 | 0 | 0 | 0.81 | 0.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 50.00 | 0.00 | 0.80 | 0.40 | % | 0.01 | 0 | 0 | 1.00 | 0.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 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 | 0.80 | 0.40 | % | 0.02 | 0 | 0 | 2.15 | 0.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 20.00 | 0.00 | 0.80 | 0.40 | % | 0.02 | 0 | 0 | 1.82 | 0.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 22.50 | 0.00 | 0.85 | 0.43 | % | 0.02 | 0 | 0 | 1.56 | 0.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 25.00 | 0.00 | 0.90 | 0.45 | % | 0.02 | 0 | 0 | 1.32 | 0.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 30.00 | 0.00 | 0.95 | 0.48 | 0.35 | 0.00 | 0.00% | 0.02 | 0 | 4 | 0.86 | 0.00 | 0.00 | 0.00 | 5/21/2026 | 6/18/2026 4:00:02 PM EST |
| 35.00 | 0.05 | 1.10 | 0.58 | 0.60 | 0.00 | 0.00% | 0.02 | 0 | 1 | 0.26 | -0.30 | 0.12 | -0.02 | 6/17/2026 | 6/18/2026 4:00:02 PM EST |
| 40.00 | 2.60 | 5.10 | 3.85 | % | 0.10 | 0 | 0 | 0.71 | -0.89 | 0.07 | -0.01 | 6/18/2026 4:00:02 PM EST | |||
| 45.00 | 7.30 | 9.90 | 8.60 | % | 0.19 | 0 | 0 | 0.98 | -1.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST | |||
| 50.00 | 12.30 | 14.90 | 13.60 | % | 0.27 | 0 | 0 | 1.23 | -1.00 | 0.00 | 0.00 | 6/18/2026 4:00:02 PM EST |