420 calls and 289 puts traded on Nov 4, 2026, 709 contracts in total. Open interest was 18.6K contracts. Over the past 30 days, volume averaged 849 contracts per day. The MPWR option volume chart shows volume by strike and expiration date.

Monolithic Power Systems IV rank is 14, so its 30-day implied volatility of 64.0% is near the bottom of its one-year range. Over the past year it ranged from 40.5% on Dec 23, 2025 to 207.3% on Jul 17, 2026. See the MPWR implied volatility history for a longer view.

The Monolithic Power Systems put/call volume ratio was 0.69 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 1.12. The MPWR open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Monolithic Power Systems options about one week from expiration was $1,252.65, 0.6% below the $1,259.99 close. The MPWR max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 67.7%, options price a move of about ±$118.06 (±9.4%) over the next week, a range of roughly $1,141.93 to $1,378.05 from the Nov 4, 2026 close. The MPWR expected move chart shows it for every expiration date.