Main Street Capital Corporation (MAIN)
NYSE: MAIN · Real-Time Price · USD
53.51
-0.59 (-1.09%)
At close: Oct 23, 2026, 4:00 PM EDT
53.91
+0.40 (0.75%)
Pre-market: Oct 26, 2026, 6:32 AM EDT
Main Street Capital Market Cap
Main Street Capital has a market cap or net worth of $5 billion as of October 23, 2026. It is the 3,589th most valuable company in the world and the 1,156th biggest in the United States. Its market cap has decreased by 2.85% in one year.
Market Cap
5.00B
Enterprise Value
7.49B
1-Year Change
-2.85%
Global Rank
Country Rank
#1,156 United States
Category
ChartMarket Cap Chart
Since November 16, 2007, Main Street Capital's market cap has increased from $128.00M to $5.00B, an increase of 3,809.09%. That is a compound annual growth rate of 21.35%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 23, 2026 | 5.00B | -7.52% |
| Dec 31, 2025 | 5.41B | 4.74% |
| Dec 31, 2024 | 5.17B | 42.68% |
| Dec 29, 2023 | 3.62B | 26.83% |
| Dec 30, 2022 | 2.85B | -8.55% |
| Dec 31, 2021 | 3.12B | 46.00% |
| Dec 31, 2020 | 2.14B | -21.81% |
| Dec 31, 2019 | 2.73B | 32.59% |
| Dec 31, 2018 | 2.06B | -10.66% |
| Dec 29, 2017 | 2.31B | 18.36% |
| Dec 30, 2016 | 1.95B | 33.77% |
| Dec 31, 2015 | 1.46B | 10.93% |
| Dec 31, 2014 | 1.31B | 1.18% |
| Dec 31, 2013 | 1.30B | 34.48% |
| Dec 31, 2012 | 965.90M | 70.50% |
| Dec 30, 2011 | 566.50M | 66.42% |
| Dec 31, 2010 | 340.40M | 95.86% |
| Dec 31, 2009 | 173.80M | 92.47% |
| Dec 31, 2008 | 90.30M | -27.00% |
| Dec 31, 2007 | 123.70M | -3.36% |
| Nov 16, 2007 | 128.00M | - |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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