1.33K calls and 517 puts traded on Nov 4, 2026, 1.85K contracts in total. Open interest was 37.5K contracts. Over the past 30 days, volume averaged 1.45K contracts per day. The ALGN option volume chart shows volume by strike and expiration date.

Align Technology IV rank is 28, so its 30-day implied volatility of 36.5% is in the lower part of its one-year range. Over the past year it ranged from 24.9% on Dec 12, 2025 to 67.0% on Jul 28, 2026. See the ALGN implied volatility history for a longer view.

The Align Technology put/call volume ratio was 0.39 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.81. The ALGN open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Align Technology options about one week from expiration was $148.57, 10.0% below the $165.03 close. The ALGN max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 44.6%, options price a move of about ±$10.19 (±6.2%) over the next week, a range of roughly $154.84 to $175.22 from the Nov 4, 2026 close. The ALGN expected move chart shows it for every expiration date.