ON Unusual Option Activity
ON Semiconductor Corp (ON) option volume on Nov 4, 2026 was 4.5% of open interest, below the 20-day average of 5.5%. Calls made up 40.5% of the volume.
ON 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 ON seeing unusual options activity?
On Nov 4, 2026, ON Semiconductor options traded 13.65K contracts against 300.44K open, a volume to open interest ratio of 0.05, below its 20-day average. The table above lists the contracts with the highest ratios.
Are ON traders trading more calls or puts?
Calls made up 40.5% of ON Semiconductor option volume on Nov 4, 2026, a put/call ratio of 1.47, so puts outnumber calls. The ON option volume chart shows calls and puts by strike.
What is ON Semiconductor Corp?
Onsemi is a supplier of power semiconductors and sensors focused on the automotive and industrial markets.