Main Street Capital (MAIN) Stock Chart & Stock Price History $65.08 -0.57 (-0.87%) Closing price 08/22/2025 03:59 PM EasternExtended Trading$65.12 +0.04 (+0.07%) As of 08/22/2025 07:57 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Main Street Capital Stock Price Performance The Main Street Capital (MAIN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 31.03%, with a year-to-date return of 11.10%. In the past month, the stock has decreased 0.50%, reflecting recent market activity. As of the latest close, Main Street Capital traded at $65.08 with a market cap of $5.82 billion and volume of 580,010 shares. Five years ago, the stock traded at $30.55, representing a 113.03% increase over that period. At the time, it had a market cap of $2.06 billion and a volume of 328,244 shares. Receive MAIN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Main Street Capital and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-0.85%1 Month Performance-0.50%3 Month Performance+17.31%Year-To-Date Performance+11.10%1 Year Performance+31.03%5 Year Performance+113.03% MAIN Stock Chart for Saturday, August, 23, 2025 MAIN Chart by TradingView Main Street Capital Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/22/2025$65.57$65.08-0.74%$66.36$65.07580,010 shs$5.82 billion08/21/2025$65.46$65.57+0.17%$66.03$65.20446,694 shs$5.86 billion08/20/2025$65.17$65.46+0.44%$65.62$64.73403,355 shs$5.85 billion08/19/2025$65.64$65.17-0.71%$66.20$65.04685,927 shs$5.83 billion08/18/2025$66.18$65.64-0.82%$66.59$65.61540,021 shs$5.87 billion08/15/2025$67.16$66.18-1.47%$67.48$66.10390,063 shs$5.92 billion08/14/2025$67.56$67.16-0.58%$67.77$67.06388,103 shs$6.01 billion08/13/2025$66.66$67.56+1.35%$67.68$66.70556,964 shs$6.04 billion08/12/2025$65.95$66.66+1.08%$66.68$65.98374,482 shs$5.93 billion08/11/2025$65.60$65.95+0.53%$67.03$65.37661,585 shs$5.87 billion Get the Latest News and Ratings for MAIN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Main Street Capital and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025$63.58$65.60+3.17%$65.85$63.32762,277 shs$5.84 billion08/07/2025$64.17$63.58-0.92%$64.50$63.16726,458 shs$5.66 billion08/06/2025$63.71$64.17+0.72%$64.48$63.43406,617 shs$5.71 billion08/05/2025$64.21$63.71-0.78%$64.37$62.92658,232 shs$5.67 billion08/04/2025$63.88$64.21+0.52%$64.75$63.70409,756 shs$5.72 billion08/01/2025$64.64$63.88-1.18%$64.27$63.01574,780 shs$5.69 billion07/31/2025$64.48$64.64+0.25%$65.52$64.30320,197 shs$5.75 billion07/30/2025$64.56$64.48-0.12%$65.00$64.02341,645 shs$5.74 billion07/29/2025$65.10$64.56-0.83%$65.29$63.80488,662 shs$5.75 billion07/28/2025$65.82$65.10-1.09%$66.00$64.79469,544 shs$5.80 billion07/25/2025$65.56$65.82+0.38%$65.96$65.15366,637 shs$5.86 billion07/24/2025$65.41$65.56+0.23%$66.39$65.44547,716 shs$5.84 billion07/23/2025$64.39$65.41+1.58%$65.67$64.44664,367 shs$5.82 billion07/22/2025$64.16$64.39+0.36%$64.54$63.25445,493 shs$5.73 billion Related Companies Ares Capital Stock Chart Gladstone Capital Stock Chart MidCap Financial Investment Stock Chart New Mountain Finance Stock Chart Oaktree Specialty Lending Stock Chart PennantPark Floating Rate Capital Stock Chart FS KKR Capital Stock Chart Goldman Sachs BDC Stock Chart Hercules Capital Stock Chart Sixth Street Specialty Lending Stock Chart Receive MAIN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Main Street Capital and its competitors with MarketBeat's FREE daily newsletter. 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