Main Street Capital Corporation
Main Street Capital Corporation (MAIN) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
main · market cap & enterprise value · FMP · as of Jun 5, 2026
Core market cap & key metrics
As of Jun 5, 2026, Main Street Capital Corporation (MAIN) has a market cap — also referred to as its net worth or valuation — of $4.8B, making it one of the top most valuable companies globally. Market Cap = $51.81 × shares outstanding.
Market cap history — by year
* 2026 = year-to-date · Year-end market cap · Source: FMP
Market cap by year
Compared to Peers
View Financial Services sectorAbout Market Cap, Net Worth & Valuation
Main Street Capital Corporation (MAIN) has a market cap — also referred to as its net worth or valuation — of $4.8B as of Jun 5, 2026, making it the #0 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Main Street Capital Corporation reached its all-time high market cap of $7.0B on Aug 13, 2025. Comparing the Main Street Capital Corporation market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Main Street Capital Corporation net worth vs peers and ask how Main Street Capital Corporation valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
MAIN market cap · 6 questionsMain Street Capital Corporation's net worth — measured as market capitalization — is $4.8B as of Jun 5, 2026. It ranks #0 globally. Market Cap = $$51.81 (price) × shares outstanding.