239 calls and 254 puts traded on Nov 4, 2026, 493 contracts in total. Open interest was 3.12K contracts. Over the past 30 days, volume averaged 114 contracts per day. The ALSN option volume chart shows volume by strike and expiration date.

Allison Transmission IV rank is 9, so its 30-day implied volatility of 38.7% is near the bottom of its one-year range. Over the past year it ranged from 24.9% on Dec 26, 2025 to 178.1% on Oct 16, 2026. See the ALSN implied volatility history for a longer view.

The Allison Transmission put/call volume ratio was 1.06 on Nov 4, 2026, so puts outnumber calls. The put/call open interest ratio was 0.26. The ALSN open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Allison Transmission options about one week from expiration was $116.24, 3.6% below the $120.63 close. The ALSN max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 40.6%, options price a move of about ±$6.78 (±5.6%) over the next week, a range of roughly $113.85 to $127.41 from the Nov 4, 2026 close. The ALSN expected move chart shows it for every expiration date.