NGS Open Interest
Natural Gas Services Group Inc (NGS) had 876 open option contracts as of Nov 4, 2026: 543 calls and 333 puts. Open interest fell 30.2% over the past four weeks. The put/call open interest ratio is 0.61, so calls outnumber puts.
Open Interest by Strike
Showing results for NGS, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for NGS, 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 NGS, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for NGS, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for NGS, all expirations, calls & puts. View full history
NGS 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 NGS have?
Natural Gas Services had 876 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 1.04K contracts.
Is NGS open interest rising or falling?
Open interest fell 30.2% over the past four weeks. It was 1.26K contracts on Oct 7, 2026. See the NGS open interest history for a longer view.
What is the NGS put/call open interest ratio?
The Natural Gas Services put/call open interest ratio was 0.61 as of Nov 4, 2026. Four weeks earlier it was 0.50.
What is Natural Gas Services Group Inc?
Natural Gas Services Group Inc provides natural gas compression equipment and services to the energy industry.