Main Street Capital Corporation (NYSE:MAIN) — Market Cap & Net Worth

$5.24 Billion USD  · Rank #3473

Market Cap & Net Worth: Main Street Capital Corporation (MAIN)

Main Street Capital Corporation (NYSE:MAIN) has a market capitalization of $5.24 Billion ($5.24 Billion) as of September 16, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #3473 globally and #1225 in its home market, demonstrating a -2.93% decrease in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying Main Street Capital Corporation's stock price $56.37 by its total outstanding shares 92989838 (92.99 Million). Also see balance sheet size of Main Street Capital Corporation for a full breakdown of the balance sheet.

Main Street Capital Corporation Market Cap History: 2015 to 2026

Main Street Capital Corporation's market capitalization history from 2015 to 2026. Data shows growth from $1.37 Billion to $5.24 Billion (13.10% CAGR). Also see Main Street Capital Corporation operating cash flow efficiency for how efficiently the company converts equity into cash flow.

Main Street Capital Corporation Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how Main Street Capital Corporation's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check MAIN share price today for real-time trading data and today's change.

Latest Price to Sales (P/S) Ratio

8.71x

Main Street Capital Corporation's market cap is 8.71 times its annual revenue

Industry average: 3.11x Higher than industry average

Latest Price to Earnings (P/E) Ratio

11.38x

Main Street Capital Corporation's market cap is 11.38 times its annual earnings

Industry average: 6.69x Higher than industry average

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $1.89 Billion $201.15 Million $138.90 Million 9.38x 13.59x
2017 $2.19 Billion $264.47 Million $170.62 Million 8.28x 12.84x
2018 $2.01 Billion $252.68 Million $168.21 Million 7.95x 11.95x
2019 $2.75 Billion $167.80 Million $129.57 Million 16.39x 21.23x
2020 $2.21 Billion $222.61 Million $29.38 Million 9.94x 75.32x
2021 $3.28 Billion $411.17 Million $330.76 Million 7.98x 9.92x
2022 $2.91 Billion $331.15 Million $241.61 Million 8.78x 12.04x
2023 $3.73 Billion $612.46 Million $428.45 Million 6.09x 8.71x
2024 $5.45 Billion $724.68 Million $508.08 Million 7.52x 10.72x
2025 $5.62 Billion $644.50 Million $493.40 Million 8.71x 11.38x

Competitor Companies of MAIN by Market Capitalization

Companies near Main Street Capital Corporation in the global market cap rankings as of September 16, 2026. Review MAIN goodwill-adjusted equity ratio to assess the quality of the company's equity after excluding intangible assets.

Key companies related to Main Street Capital Corporation by market ranking:

  • BlackRock Inc (NYSE:BLK): Ranked #144 globally with a market cap of $165.42 Billion USD.
  • Blackstone Group Inc (NYSE:BX): Ranked #270 globally with a market cap of $96.55 Billion USD.
  • KKR & Co. Inc. (NYSE:KKR): Ranked #289 globally with a market cap of $91.80 Billion USD.
  • Brookfield Corporation (TO:BN): Ranked #314 globally with a market cap of $84.90 Billion USD ( CA$117.36 Billion CAD).
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#144 BlackRock Inc NYSE:BLK $165.42 Billion $1065.60
#270 Blackstone Group Inc NYSE:BX $96.55 Billion $128.29
#289 KKR & Co. Inc. NYSE:KKR $91.80 Billion $102.27
#314 Brookfield Corporation TO:BN $84.90 Billion CA$52.29

Main Street Capital Corporation Historical Marketcap From 2015 to 2026

Between 2015 and today, Main Street Capital Corporation's market cap moved from $1.37 Billion to $ 5.24 Billion, with a yearly change of 13.10%.

Year Market Cap Change (%)
2026 $5.24 Billion -6.66%
2025 $5.62 Billion +3.09%
2024 $5.45 Billion +45.94%
2023 $3.73 Billion +28.31%
2022 $2.91 Billion -11.37%
2021 $3.28 Billion +48.31%
2020 $2.21 Billion -19.54%
2019 $2.75 Billion +36.88%
2018 $2.01 Billion -8.27%
2017 $2.19 Billion +16.05%
2016 $1.89 Billion +37.45%
2015 $1.37 Billion --

End of Day Market Cap According to Different Sources

On Sep 15th, 2026 the market cap of Main Street Capital Corporation was reported to be:

Source Market Cap
Yahoo Finance $5.24 Billion USD
MoneyControl $5.24 Billion USD
MarketWatch $5.24 Billion USD
marketcap.company $5.24 Billion USD
Reuters $5.24 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About Main Street Capital Corporation

NYSE:MAIN USA Asset Management
Market Cap
$5.24 Billion
Market Cap Rank
#3473 Global
#1225 in USA
Share Price
$56.37
Change (1 day)
+0.27%
52-Week Range
$49.63 - $66.13
All Time High
$67.54
About

Main Street Capital Corporation is a business development company and a small business investment company specializing in direct and indirect investments. In direct investments, the firm specializes in private equity capital to lower middle market companies. The firm specializes in recapitalizations, loan, growth capital, mezzanine debt, corporate carveouts, family estate planning, management buy… Read more