Options Chain for NORTHWEST NAT HLDG CO COM (NWN) - $49.19 as of 11/28/2025 4:01:45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.50 | 24.70 | 28.80 | 26.75 | % | 1.19 | 0 | 0 | 3.13 | 1.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST | |||
| 25.00 | 22.20 | 26.30 | 24.25 | % | 0.97 | 0 | 0 | 2.79 | 1.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST | |||
| 30.00 | 17.40 | 21.60 | 19.50 | % | 0.65 | 0 | 0 | 2.32 | 1.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST | |||
| 35.00 | 12.50 | 16.60 | 14.55 | 6.81 | 0.00 | 0.00% | 0.42 | 0 | 0 | 1.71 | 1.00 | 0.00 | 0.00 | 9/2/2025 | 11/28/2025 12:59:50 PM EST |
| 40.00 | 7.50 | 10.20 | 8.85 | 5.00 | 0.00 | 0.00% | 0.22 | 0 | 0 | 0.84 | 1.00 | 0.00 | 0.00 | 10/28/2025 | 11/28/2025 12:59:50 PM EST |
| 45.00 | 4.30 | 4.90 | 4.60 | 4.27 | 0.00 | 0.00% | 0.10 | 0 | 581 | 0.35 | 1.00 | 0.01 | 0.00 | 11/26/2025 | 11/28/2025 12:59:50 PM EST |
| 50.00 | 0.40 | 0.60 | 0.50 | 0.45 | 0.00 | 0.00% | 0.01 | 0 | 207 | 0.13 | 0.44 | 0.25 | -0.02 | 11/26/2025 | 11/28/2025 12:59:50 PM EST |
| 55.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 0.82 | 0.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST | |||
| 60.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 1.14 | 0.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.50 | 0.00 | 2.15 | 1.08 | % | 0.05 | 0 | 0 | 3.32 | 0.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST | |||
| 25.00 | 0.00 | 2.15 | 1.08 | % | 0.04 | 0 | 0 | 2.96 | 0.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST | |||
| 30.00 | 0.00 | 2.15 | 1.08 | 0.05 | 0.00 | 0.00% | 0.04 | 0 | 25 | 2.34 | 0.00 | 0.00 | 0.00 | 10/22/2025 | 11/28/2025 12:59:50 PM EST |
| 35.00 | 0.00 | 2.15 | 1.08 | 0.25 | 0.00 | 0.00% | 0.03 | 0 | 14 | 1.81 | 0.00 | 0.00 | 0.00 | 10/17/2025 | 11/28/2025 12:59:50 PM EST |
| 40.00 | 0.05 | 0.20 | 0.13 | 0.11 | 0.00 | 0.00% | 0.00 | 0 | 49 | 0.53 | 0.00 | 0.00 | 0.00 | 11/3/2025 | 11/28/2025 12:59:50 PM EST |
| 45.00 | 0.05 | 0.10 | 0.08 | 0.10 | 0.00 | 0.00% | 0.00 | 1 | 104 | 0.26 | 0.00 | 0.01 | 0.00 | 11/28/2025 | 11/28/2025 12:59:50 PM EST |
| 50.00 | 0.65 | 1.10 | 0.88 | % | 0.02 | 0 | 0 | 0.14 | -0.56 | 0.25 | -0.02 | 11/28/2025 12:59:50 PM EST | |||
| 55.00 | 3.60 | 7.90 | 5.75 | % | 0.10 | 0 | 0 | 0.94 | -1.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST | |||
| 60.00 | 8.50 | 12.80 | 10.65 | % | 0.18 | 0 | 0 | 1.20 | -1.00 | 0.00 | 0.00 | 11/28/2025 12:59:50 PM EST |