30 calls and 2 puts traded on Nov 4, 2026, 32 contracts in total. Open interest was 3.34K contracts. Over the past 30 days, volume averaged 83 contracts per day. The FLS option volume chart shows volume by strike and expiration date.

Flowserve IV rank is 10, so its 30-day implied volatility of 41.5% is near the bottom of its one-year range. Over the past year it ranged from 25.5% on Dec 10, 2025 to 186.8% on Jul 17, 2026. See the FLS implied volatility history for a longer view.

The Flowserve put/call volume ratio was 0.07 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.12. The FLS open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Flowserve options about one week from expiration was $65.00, 19.9% below the $81.19 close. The FLS max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 44.7%, options price a move of about ±$5.03 (±6.2%) over the next week, a range of roughly $76.16 to $86.22 from the Nov 4, 2026 close. The FLS expected move chart shows it for every expiration date.