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Main Street Capital CORP
MAIN - CIK 0001396440
Market cap$4.78 B
Rank#1426
SEC filings4,105
Market capitalization of Main Street Capital CORP
As of 2026-06-11, Main Street Capital CORP (MAIN) has a market capitalization of $4.78 B, making it the #1426 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-06-11 | $4.78 B |
| 2026-06-10 | $4.79 B |
| 2026-05-29 | $4.80 B |
| 2026-05-28 | $4.75 B |
| 2026-05-26 | $4.77 B |
| 2026-05-25 | $4.62 B |
| 2026-05-24 | $4.62 B |
| 2026-05-22 | $4.62 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
Market Cap of similar companies
Frequently asked questions
What is Main Street Capital CORP's market cap?
As of 2026-06-11, Main Street Capital CORP (MAIN) has a market capitalization of $4.78 B, making it the #1426 most valuable US-listed company.
Where does Main Street Capital CORP rank by market cap?
Main Street Capital CORP is the #1426 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.