NWE Open Interest
NorthWestern Energy Group Inc (NWE) had 609 open option contracts as of Nov 4, 2026: 566 calls and 43 puts. Open interest rose 104.4% over the past four weeks. The put/call open interest ratio is 0.08, so calls outnumber puts.
Open Interest by Strike
Showing results for NWE, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for NWE, 2026-11-20(m), calls & puts
| Call Open Interest Total | |
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| Put Open Interest Total | |
| Open Interest Total | |
| Put-Call Open Interest Ratio |
Highest Open Interest Options
Showing results for NWE, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for NWE, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for NWE, all expirations, calls & puts. View full history
NWE Open Interest FAQ
What is open interest?
Open interest is the number of option contracts that are open and not yet closed, exercised, or expired. The Options Clearing Corporation calculates it once a day from the previous day's trades, and it is published before the market opens.
How much open interest does NWE have?
NorthWestern Energy had 609 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 781 contracts.
Is NWE open interest rising or falling?
Open interest rose 104.4% over the past four weeks. It was 298 contracts on Oct 7, 2026. See the NWE open interest history for a longer view.
What is the NWE put/call open interest ratio?
The NorthWestern Energy put/call open interest ratio was 0.08 as of Nov 4, 2026. Four weeks earlier it was 0.15.
What is NorthWestern Energy Group Inc?
NorthWestern Energy Group Inc provides electricity and natural gas services in the Upper Midwest and Northwest of the U.S. in the states of Montana, South Dakota, Nebraska, and Yellowstone National Park.