NWN Open Interest
Northwest Natural Holding Company (NWN) had 528 open option contracts as of Nov 4, 2026: 402 calls and 126 puts. Open interest rose 18.9% over the past four weeks, and is NWN's highest level in 4 weeks. The put/call open interest ratio is 0.31, so calls outnumber puts.
Open Interest by Strike
Showing results for NWN, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for NWN, 2026-11-20(m), calls & puts
| Call Open Interest Total | |
|---|---|
| Put Open Interest Total | |
| Open Interest Total | |
| Put-Call Open Interest Ratio |
Highest Open Interest Options
Showing results for NWN, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for NWN, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for NWN, all expirations, calls & puts. View full history
NWN 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 NWN have?
Northwest Natural had 528 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 466 contracts.
Is NWN open interest rising or falling?
Open interest rose 18.9% over the past four weeks, and is NWN's highest level in 4 weeks. It was 444 contracts on Oct 7, 2026. See the NWN open interest history for a longer view.
What is the NWN put/call open interest ratio?
The Northwest Natural put/call open interest ratio was 0.31 as of Nov 4, 2026. Four weeks earlier it was 0.36.
What is Northwest Natural Holding Company?
Northwest Natural Holding Co is a public natural gas service supplier operating in the U.S.