TORONTO (S&P Global Ratings) Oct. 27, 2026--S&P Global Ratings today assigned its'BBB-'issue-level rating to Main Street Capital Corp.'s (BBB-/Stable/--) $500 million senior unsecured notes due 2030. The company intends to use the net proceeds to pay off outstanding borrowings under its credit facilities. As of Oct. 23, 2026, Main Street had $575 million outstanding on its corporate facility and $314 million outstanding on its SPV facility. As of the same date, Main Street had approximately $2.7 billion debt outstanding, of which roughly 67% was unsecured, a higher proportion than those of its publicly traded business development company peers. Assuming no growth in equity as of June 30, 2026, Main Street's leverage, calculated as debt to adjusted total