STM Unusual Option Activity
STMicroelectronics N.V. (STM) option volume on Nov 4, 2026 was 11.7% of open interest, well above the 20-day average of 4.6%. Calls made up 92.7% of the volume.
STM 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 STM seeing unusual options activity?
On Nov 4, 2026, STMicroelectronics options traded 41.26K contracts against 352.73K open, a volume to open interest ratio of 0.12, well above its 20-day average. The table above lists the contracts with the highest ratios.
Are STM traders trading more calls or puts?
Calls made up 92.7% of STMicroelectronics option volume on Nov 4, 2026, a put/call ratio of 0.08, so calls outnumber puts. The STM option volume chart shows calls and puts by strike.