Options Chain for COLUMBIA BKG SYS INC COM (COLB) - $28.62 as of 12/26/2025 12:52:06 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 | 14.90 | 18.40 | 16.65 | 10.55 | 0.00 | 0.00% | 1.33 | 0 | 0 | 2.68 | 1.00 | 0.00 | 0.00 | 6/23/2025 | 12/26/2025 3:59:52 PM EST |
| 15.00 | 12.60 | 15.90 | 14.25 | % | 0.95 | 0 | 0 | 2.21 | 1.00 | 0.00 | 0.00 | 12/26/2025 3:59:52 PM EST | |||
| 17.50 | 10.10 | 12.80 | 11.45 | % | 0.65 | 0 | 0 | 1.57 | 1.00 | 0.00 | 0.00 | 12/26/2025 3:59:52 PM EST | |||
| 20.00 | 7.50 | 10.30 | 8.90 | 4.40 | 0.00 | 0.00% | 0.45 | 0 | 1 | 1.27 | 1.00 | 0.00 | 0.00 | 7/1/2025 | 12/26/2025 3:59:52 PM EST |
| 22.50 | 4.90 | 8.00 | 6.45 | 6.20 | 0.00 | 0.00% | 0.29 | 0 | 55 | 1.05 | 0.97 | 0.02 | -0.01 | 12/3/2025 | 12/26/2025 3:59:52 PM EST |
| 25.00 | 2.85 | 5.50 | 4.18 | 4.82 | 0.00 | 0.00% | 0.17 | 0 | 254 | 0.79 | 0.92 | 0.05 | -0.01 | 12/15/2025 | 12/26/2025 3:59:52 PM EST |
| 30.00 | 0.30 | 0.95 | 0.63 | 0.90 | 0.00 | 0.00% | 0.02 | 0 | 1,203 | 0.24 | 0.35 | 0.14 | -0.01 | 12/23/2025 | 12/26/2025 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.50 | 0.00 | 0.20 | 0.10 | 0.15 | 0.00 | 0.00% | 0.01 | 0 | 2 | 1.30 | 0.00 | 0.00 | 0.00 | 10/17/2025 | 12/26/2025 3:59:52 PM EST |
| 15.00 | 0.00 | 0.30 | 0.15 | 0.27 | 0.00 | 0.00% | 0.01 | 0 | 3 | 1.15 | 0.00 | 0.00 | 0.00 | 7/28/2025 | 12/26/2025 3:59:52 PM EST |
| 17.50 | 0.00 | 0.15 | 0.08 | 0.11 | 0.00 | 0.00% | 0.00 | 0 | 233 | 0.79 | 0.00 | 0.00 | 0.00 | 11/25/2025 | 12/26/2025 3:59:52 PM EST |
| 20.00 | 0.00 | 2.15 | 1.08 | 0.08 | 0.00 | 0.00% | 0.05 | 0 | 26 | 1.47 | 0.00 | 0.00 | 0.00 | 12/17/2025 | 12/26/2025 3:59:52 PM EST |
| 22.50 | 0.05 | 0.25 | 0.15 | 0.16 | 0.00 | 0.00% | 0.01 | 0 | 499 | 0.43 | -0.03 | 0.02 | -0.01 | 12/18/2025 | 12/26/2025 3:59:52 PM EST |
| 25.00 | 0.00 | 2.45 | 1.23 | 0.40 | 0.00 | 0.00% | 0.05 | 0 | 268 | 0.98 | -0.08 | 0.05 | -0.01 | 12/15/2025 | 12/26/2025 3:59:52 PM EST |
| 30.00 | 1.70 | 2.00 | 1.85 | 1.75 | 0.00 | 0.00% | 0.06 | 0 | 5 | 0.24 | -0.65 | 0.14 | -0.01 | 12/12/2025 | 12/26/2025 3:59:52 PM EST |