MAIN Option Overview

142 calls and 1.94K puts traded on Nov 9, 2026, 2.08K contracts in total. Over the past 30 days, volume averaged 594 contracts per day. The MAIN option volume chart shows volume by strike and expiration date.

Main Street Capital IV rank is 13, so its 30-day implied volatility of 22.4% is near the bottom of its one-year range. Over the past year it ranged from 1.1% on Mar 20, 2026 to 161.7% on Oct 16, 2026. See the MAIN implied volatility history for a longer view.

The Main Street Capital put/call volume ratio was 13.67 on Nov 9, 2026, which signals bearish sentiment. The MAIN open interest chart shows calls and puts at each strike.

As of the Nov 9, 2026 close, max pain for Main Street Capital options about one week from expiration was $54.65, 4.4% below the $57.16 close. The MAIN max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 29.2%, options price a move of about ±$2.31 (±4.0%) over the next week, a range of roughly $54.85 to $59.47 from the Nov 9, 2026 close. The MAIN expected move chart shows it for every expiration date.

Main Street Capital Corp is a principal investment firm focused on providing customized long-term debt and equity capital solutions to lower middle market ("LMM") companies and debt capital to private ("Private Loan") companies owned by or in the process of being acquired by a private equity fund.