CBOE Open Interest
Cboe Global Markets Inc (CBOE) had 51.56K open option contracts as of Nov 4, 2026: 31.86K calls and 19.7K puts. Open interest rose 5.5% over the past four weeks. The put/call open interest ratio is 0.62, so calls outnumber puts.
Open Interest by Strike
Showing results for CBOE, 2026-11-06(w), calls & puts
Open Interest Stats
Showing results for CBOE, 2026-11-06(w), 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 CBOE, 2026-11-06(w), calls & puts
Open Interest Total by Expiry
Showing results for CBOE, 2026-11-06(w), calls & puts. View all expiries
Open Interest History
Showing daily totals for CBOE, all expirations, calls & puts. View full history
CBOE 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 CBOE have?
Cboe Global Markets had 51.56K open option contracts as of Nov 4, 2026. Over the past 30 days, open interest averaged 49.8K contracts.
Is CBOE open interest rising or falling?
Open interest rose 5.5% over the past four weeks. It was 48.89K contracts on Oct 7, 2026. See the CBOE open interest history for a longer view.
What is the CBOE put/call open interest ratio?
The Cboe Global Markets put/call open interest ratio was 0.62 as of Nov 4, 2026. Four weeks earlier it was 0.71.
What is Cboe Global Markets Inc?
Founded in 1973, Cboe controls the largest option exchange in the US, which provides around 60% of the firm's revenue.