PEN Unusual Option Activity
Penumbra Inc (PEN) option volume on Nov 4, 2026 was 0.7% of open interest, well below the 20-day average of 2.6%. Calls made up 1.1% of the volume.
PEN 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 PEN seeing unusual options activity?
On Nov 4, 2026, Penumbra options traded 88 contracts against 13.41K open, a volume to open interest ratio of 0.01, well below its 20-day average. The table above lists the contracts with the highest ratios.
Are PEN traders trading more calls or puts?
Calls made up 1.1% of Penumbra option volume on Nov 4, 2026, a put/call ratio of 87.00, so puts outnumber calls. The PEN option volume chart shows calls and puts by strike.
What is Penumbra Inc?
Domiciled in the US, Penumbra designs, manufactures, and markets an array of thrombectomy and embolization devices and equipment to mechanically remove blood clots.