Options Chain for NORTHWEST NAT HLDG CO COM (NWN) - $41.25 as of 8/13/2025 9:05:13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.00 | 19.20 | 23.40 | 21.30 | % | 1.06 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 22.50 | 16.70 | 20.90 | 18.80 | % | 0.84 | 0 | 0 | 9.35 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 25.00 | 14.20 | 18.40 | 16.30 | % | 0.65 | 0 | 0 | 8.12 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 30.00 | 9.10 | 13.40 | 11.25 | % | 0.38 | 0 | 0 | 5.99 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 35.00 | 4.10 | 8.40 | 6.25 | % | 0.18 | 0 | 0 | 4.11 | 1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 40.00 | 0.05 | 2.35 | 1.20 | 0.45 | 0.00 | 0.00% | 0.03 | 0 | 34 | 1.36 | 0.89 | 0.17 | -0.05 | 8/5/2025 | 8/13/2025 3:59:46 PM EST |
| 45.00 | 0.00 | 2.15 | 1.08 | 0.07 | 0.00 | 0.00% | 0.02 | 0 | 4 | 2.93 | 0.00 | 0.00 | 0.00 | 7/21/2025 | 8/13/2025 3:59:46 PM EST |
| 50.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 4.06 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 55.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 4.96 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 60.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 5.72 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.00 | 0.00 | 0.05 | 0.03 | % | 0.00 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 22.50 | 0.00 | 2.15 | 1.08 | % | 0.05 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 25.00 | 0.00 | 0.05 | 0.03 | % | 0.00 | 0 | 0 | 3.24 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 30.00 | 0.00 | 2.15 | 1.08 | % | 0.04 | 0 | 0 | 6.01 | 0.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 35.00 | 0.00 | 0.10 | 0.05 | 0.18 | 0.00 | 0.00% | 0.00 | 0 | 1 | 1.42 | 0.00 | 0.00 | 0.00 | 6/27/2025 | 8/13/2025 3:59:46 PM EST |
| 40.00 | 0.00 | 1.30 | 0.65 | 0.47 | 0.00 | 0.00% | 0.02 | 0 | 36 | 0.41 | -0.11 | 0.17 | -0.05 | 8/8/2025 | 8/13/2025 3:59:46 PM EST |
| 45.00 | 1.60 | 5.90 | 3.75 | 4.31 | 0.00 | 0.00% | 0.08 | 0 | 2 | 2.94 | -1.00 | 0.00 | 0.00 | 7/8/2025 | 8/13/2025 3:59:46 PM EST |
| 50.00 | 6.60 | 10.90 | 8.75 | % | 0.17 | 0 | 0 | 4.07 | -1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 55.00 | 11.60 | 15.90 | 13.75 | % | 0.25 | 0 | 0 | 4.98 | -1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST | |||
| 60.00 | 16.60 | 20.90 | 18.75 | % | 0.31 | 0 | 0 | 5.74 | -1.00 | 0.00 | 0.00 | 8/13/2025 3:59:46 PM EST |