Main Street Capital posts preliminary Q3 2026 results with NAV gain

Main Street Capital Corporation (NYSE: MAIN) released preliminary financial estimates for the third quarter of 2026, reporting net investment income (NII) of $0.87 to $0.91 per share and distributable net investment income (DNII) of $0.94 to $0.98 per share. DNII before taxes is estimated at $0.96 to $1.00 per share.

The company estimates net asset value (NAV) per share of $34.18 to $34.26 as of September 30, 2026, up from $33.92 as of June 30, 2026. The increase of $0.26 to $0.34 per share, or 0.8% to 1.0%, came after a supplemental dividend of $0.30 per share paid in September 2026 and marks the seventeenth consecutive quarterly increase in NAV per share, according to the company.

Main Street estimates it generated an annualized return on equity of over 14% for the third quarter. Non-accrual investments represented 0.9% of the total portfolio at fair value and 3.5% at cost as of September 30, 2026.

During the quarter, Main Street Mezzanine Fund, LP, a wholly-owned subsidiary licensed as a Small Business Investment Company (SBIC), received approval from the U.S. Small Business Administration to increase its SBIC debenture borrowing capacity by $75.0 million to $250.0 million. Combined with Main Street Capital III, LP, another wholly-owned SBIC, the company now has access to $425.0 million of the $475.0 million regulatory maximum SBIC debenture borrowing capacity for affiliated SBIC funds.

Investment activity during the quarter included $61.5 million in lower middle market portfolio investments and $162.0 million in private loan portfolio investments.

Main Street plans to release full third-quarter 2026 results on November 5, 2026, after market close, with a conference call scheduled for November 6, 2026, at 10:00 a.m. Eastern time.

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