REGN Unusual Option Activity
Regeneron Pharmaceuticals Inc (REGN) option volume on Nov 4, 2026 was 4.6% of open interest, above the 20-day average of 3.7%. Calls made up 40.7% of the volume.
REGN 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 REGN seeing unusual options activity?
On Nov 4, 2026, Regeneron Pharmaceuticals options traded 1.88K contracts against 40.71K open, a volume to open interest ratio of 0.05, above its 20-day average. The table above lists the contracts with the highest ratios.
Are REGN traders trading more calls or puts?
Calls made up 40.7% of Regeneron Pharmaceuticals option volume on Nov 4, 2026, a put/call ratio of 1.46, so puts outnumber calls. The REGN option volume chart shows calls and puts by strike.
What is Regeneron Pharmaceuticals Inc?
Regeneron Pharmaceuticals discovers, develops, and commercializes products that fight eye disease, cardiovascular disease, cancer, and inflammation.