ALSN Unusual Option Activity
Allison Transmission Holdings Inc (ALSN) option volume on Nov 4, 2026 was 15.8% of open interest, well above the 20-day average of 3.8%. Calls made up 48.5% of the volume. Relative to open interest, that was ALSN's most active day in 4 weeks.
ALSN 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 ALSN seeing unusual options activity?
On Nov 4, 2026, Allison Transmission options traded 493 contracts against 3.12K open, a volume to open interest ratio of 0.16, well above its 20-day average. The table above lists the contracts with the highest ratios.
Are ALSN traders trading more calls or puts?
Calls made up 48.5% of Allison Transmission option volume on Nov 4, 2026, a put/call ratio of 1.06, so puts outnumber calls. The ALSN option volume chart shows calls and puts by strike.
What is Allison Transmission Holdings Inc?
Allison Transmission is the largest manufacturer of fully automatic transmissions for medium- and heavy-duty commercial vehicles.