GRC Open Interest
The Gorman-Rupp Company (GRC) had 239 open option contracts as of Nov 4, 2026: 194 calls and 45 puts. Open interest rose 21.9% over the past four weeks. The put/call open interest ratio is 0.23, so calls outnumber puts.
Open Interest by Strike
Showing results for GRC, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for GRC, 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 GRC, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for GRC, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for GRC, all expirations, calls & puts. View full history
GRC 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 GRC have?
Gorman-Rupp had 239 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 211 contracts.
Is GRC open interest rising or falling?
Open interest rose 21.9% over the past four weeks. It was 196 contracts on Oct 7, 2026. See the GRC open interest history for a longer view.
What is the GRC put/call open interest ratio?
The Gorman-Rupp put/call open interest ratio was 0.23 as of Nov 4, 2026. Four weeks earlier it was 0.22.
What is The Gorman-Rupp Company?
Gorman-Rupp Co designs, manufactures, and globally sells pumps & pump systems for use in water, wastewater, construction, dewatering, industrial, petroleum, original equipment, agriculture, fire protection, heating, ventilating & air conditioning, military, and other liquid-handling applications.