$SPX Unusual Option Activity
S&P 500 Index ($SPX) option volume on Nov 6, 2026 was 22.1% of open interest, in line with the 20-day average of 22.8%. Calls made up 45.3% of the volume.
$SPX 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 $SPX seeing unusual options activity?
On Nov 6, 2026, $SPX options traded 5.56M contracts against 25.18M open, a volume to open interest ratio of 0.22, in line with its 20-day average. The table above lists the contracts with the highest ratios.
Are $SPX traders trading more calls or puts?
Calls made up 45.3% of $SPX option volume on Nov 6, 2026, a put/call ratio of 1.21, so puts outnumber calls. The $SPX option volume chart shows calls and puts by strike.