372 calls and 19 puts traded on Nov 4, 2026, 391 contracts in total. Open interest was 9.98K contracts. Over the past 30 days, volume averaged 171 contracts per day. The ACM option volume chart shows volume by strike and expiration date.

Aecom IV rank is 16, so its 30-day implied volatility of 45.4% is near the bottom of its one-year range. Over the past year it ranged from 20.5% on Dec 24, 2025 to 177.9% on Jul 17, 2026. See the ACM implied volatility history for a longer view.

The Aecom put/call volume ratio was 0.05 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.92. The ACM open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Aecom options about one week from expiration was $60.32, 11.6% below the $68.21 close. The ACM max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 52.0%, options price a move of about ±$4.92 (±7.2%) over the next week, a range of roughly $63.29 to $73.13 from the Nov 4, 2026 close. The ACM expected move chart shows it for every expiration date.