FSM Open Interest
Fortuna Mining Corp (FSM) had 71.56K open option contracts as of Nov 4, 2026: 59.83K calls and 11.73K puts. Open interest rose 4.1% over the past four weeks, and is FSM's highest level in 4 weeks. The put/call open interest ratio is 0.20, so calls outnumber puts.
Open Interest by Strike
Showing results for FSM, 2026-11-20(m), calls & puts
Open Interest Stats
Showing results for FSM, 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 FSM, 2026-11-20(m), calls & puts
Open Interest Total by Expiry
Showing results for FSM, 2026-11-20(m), calls & puts. View all expiries
Open Interest History
Showing daily totals for FSM, all expirations, calls & puts. View full history
FSM 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 FSM have?
Fortuna Mining had 71.56K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 68.74K contracts.
Is FSM open interest rising or falling?
Open interest rose 4.1% over the past four weeks, and is FSM's highest level in 4 weeks. It was 68.75K contracts on Oct 7, 2026. See the FSM open interest history for a longer view.
What is the FSM put/call open interest ratio?
The Fortuna Mining put/call open interest ratio was 0.20 as of Nov 4, 2026. Four weeks earlier it was 0.19.
What is Fortuna Mining Corp?
Fortuna Mining Corp is a Canadian-based precious metals mining company with mines in the Latin America and West Africa regions producing gold and silver.