GFF Open Interest
Griffon Corp (GFF) had 231 open option contracts as of Nov 4, 2026: 165 calls and 66 puts. Open interest fell 37.7% over the past four weeks. The put/call open interest ratio is 0.40, so calls outnumber puts.
Open Interest by Strike
Showing results for GFF, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for GFF, 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 GFF, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for GFF, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for GFF, all expirations, calls & puts. View full history
GFF 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 GFF have?
Griffon had 231 open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 285 contracts.
Is GFF open interest rising or falling?
Open interest fell 37.7% over the past four weeks. It was 371 contracts on Oct 7, 2026. See the GFF open interest history for a longer view.
What is the GFF put/call open interest ratio?
The Griffon put/call open interest ratio was 0.40 as of Nov 4, 2026. Four weeks earlier it was 0.16.
What is Griffon Corp?
Griffon Corp manufactures and markets residential, commercial and industrial garage doors to professional installing dealers and home center retail chains.