GHM Open Interest
Graham Corporation (GHM) had 877 open option contracts as of Nov 4, 2026: 738 calls and 139 puts. Open interest fell 18.8% over the past four weeks. The put/call open interest ratio is 0.19, so calls outnumber puts.
Open Interest by Strike
Showing results for GHM, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for GHM, 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 GHM, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for GHM, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for GHM, all expirations, calls & puts. View full history
GHM 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 GHM have?
Graham had 877 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 917 contracts.
Is GHM open interest rising or falling?
Open interest fell 18.8% over the past four weeks. It was 1.08K contracts on Oct 7, 2026. See the GHM open interest history for a longer view.
What is the GHM put/call open interest ratio?
The Graham put/call open interest ratio was 0.19 as of Nov 4, 2026. Four weeks earlier it was 0.17.
What is Graham Corporation?
Graham Corp designs and manufactures mission-critical fluid, power, heat transfer, vacuum, and mixing technologies for the Defense, Energy & Process, and Space industries.