CBOE Unusual Option Activity
Cboe Global Markets Inc (CBOE) option volume on Nov 4, 2026 was 4.8% of open interest, in line with the 20-day average of 5.0%. Calls made up 32.8% of the volume.
CBOE Unusual Options FAQ
What makes option activity unusual?
Option activity is usually called unusual when a contract trades much more volume than its open interest, which can mean traders are opening new positions.
Is CBOE seeing unusual options activity?
On Nov 4, 2026, Cboe Global Markets options traded 2.48K contracts against 51.56K open, a volume to open interest ratio of 0.05, in line with its 20-day average. The table above lists the contracts with the highest ratios.
Are CBOE traders trading more calls or puts?
Calls made up 32.8% of Cboe Global Markets option volume on Nov 4, 2026, a put/call ratio of 2.04, so puts outnumber calls. The CBOE option volume chart shows calls and puts by strike.
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.