Options Chain for NORTHWEST NAT HLDG CO COM (NWN) - $50.47 as of 8/7/2026 8:49:25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.00 | 23.50 | 27.60 | 25.55 | % | 1.02 | 0 | 0 | 3.59 | 1.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 30.00 | 18.50 | 22.60 | 20.55 | % | 0.69 | 0 | 0 | 2.84 | 1.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 35.00 | 13.50 | 17.60 | 15.55 | % | 0.44 | 0 | 0 | 2.21 | 1.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 40.00 | 8.50 | 12.70 | 10.60 | 8.50 | 0.00 | 0.00% | 0.27 | 0 | 1 | 1.69 | 1.00 | 0.00 | 0.00 | 8/4/2026 | 8/7/2026 4:00:04 PM EST |
| 45.00 | 3.50 | 7.60 | 5.55 | % | 0.12 | 0 | 0 | 1.12 | 0.96 | 0.03 | -0.02 | 8/7/2026 4:00:04 PM EST | |||
| 50.00 | 0.00 | 3.00 | 1.50 | 1.00 | 0.00 | 0.00% | 0.03 | 0 | 27 | 0.68 | 0.62 | 0.11 | -0.05 | 8/6/2026 | 8/7/2026 4:00:04 PM EST |
| 55.00 | 0.00 | 2.00 | 1.00 | 0.05 | 0.00 | 0.00% | 0.02 | 0 | 6 | 0.92 | 0.16 | 0.06 | -0.03 | 7/29/2026 | 8/7/2026 4:00:04 PM EST |
| 60.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 1.31 | 0.01 | 0.01 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 65.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 1.60 | 0.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 70.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 1.84 | 0.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 75.00 | 0.00 | 2.15 | 1.08 | % | 0.01 | 0 | 0 | 2.06 | 0.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.00 | 0.00 | 2.15 | 1.08 | % | 0.04 | 0 | 0 | 3.69 | 0.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 30.00 | 0.00 | 2.15 | 1.08 | % | 0.04 | 0 | 0 | 2.94 | 0.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 35.00 | 0.00 | 2.15 | 1.08 | % | 0.03 | 0 | 0 | 2.29 | 0.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 40.00 | 0.00 | 2.15 | 1.08 | % | 0.03 | 0 | 0 | 1.72 | 0.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 45.00 | 0.00 | 1.50 | 0.75 | % | 0.02 | 0 | 0 | 0.98 | -0.04 | 0.03 | -0.02 | 8/7/2026 4:00:04 PM EST | |||
| 50.00 | 0.00 | 2.70 | 1.35 | 2.10 | 0.00 | 0.00% | 0.03 | 0 | 11 | 0.77 | -0.38 | 0.11 | -0.05 | 8/4/2026 | 8/7/2026 4:00:04 PM EST |
| 55.00 | 2.50 | 6.60 | 4.55 | % | 0.08 | 0 | 0 | 0.99 | -0.84 | 0.06 | -0.03 | 8/7/2026 4:00:04 PM EST | |||
| 60.00 | 7.30 | 11.50 | 9.40 | % | 0.16 | 0 | 0 | 1.31 | -0.99 | 0.01 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 65.00 | 12.40 | 16.60 | 14.50 | % | 0.22 | 0 | 0 | 1.63 | -1.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 70.00 | 17.40 | 21.60 | 19.50 | % | 0.28 | 0 | 0 | 1.88 | -1.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST | |||
| 75.00 | 22.40 | 26.60 | 24.50 | % | 0.33 | 0 | 0 | 2.10 | -1.00 | 0.00 | 0.00 | 8/7/2026 4:00:04 PM EST |