Pioneer Municipal High Income Opportunities Fund (MIO) Stock Chart & Stock Price History $11.74 -0.05 (-0.38%) Closing price 07/11/2025 03:58 PM EasternExtended Trading$11.74 0.00 (0.00%) As of 07/11/2025 04:04 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 Share Share Chart Stock AnalysisChartDividendHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Pioneer Municipal High Income Opportunities Fund Stock Price Performance The Pioneer Municipal High Income Opportunities Fund (MIO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 0.80%, with a year-to-date return of -0.97%. In the past month, the stock has decreased 0.85%, reflecting recent market activity. As of the latest close, Pioneer Municipal High Income Opportunities Fund traded at $11.75 with a market cap of and volume of 87,296 shares. Receive MIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Pioneer Municipal High Income Opportunities Fund and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-0.38%1 Month Performance-0.85%3 Month Performance+5.38%Year-To-Date Performance-0.97%1 Year Performance-0.80% MIO Stock Chart for Sunday, July, 13, 2025 MIO Chart by TradingView Pioneer Municipal High Income Opportunities Fund 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 Capitalization07/11/2025$11.79$11.75-0.34%$11.79$11.7487,296 shs$0.0007/10/2025$11.81$11.79-0.21%$11.85$11.7853,661 shs$0.0007/09/2025$11.79$11.81+0.17%$11.85$11.8037,891 shs$0.0007/08/2025$11.79$11.79$11.84$11.78135,686 shs$0.0007/07/2025$11.83$11.79-0.34%$11.88$11.7975,895 shs$0.0007/04/2025$11.83$11.83$11.90$11.8345,302 shs$0.0007/03/2025$11.86$11.83-0.25%$11.90$11.8345,302 shs$0.0007/02/2025$11.84$11.86+0.21%$11.90$11.8349,708 shs$0.0007/01/2025$11.83$11.84+0.04%$11.89$11.8055,245 shs$0.0006/30/2025$11.82$11.83+0.08%$11.88$11.8078,093 shs$0.00 Get the Latest News and Ratings for MIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Pioneer Municipal High Income Opportunities Fund and its competitors with MarketBeat's FREE daily newsletter. 06/27/2025$11.82$11.82+0.04%$11.84$11.7856,874 shs$0.0006/26/2025$11.80$11.82+0.13%$11.85$11.7816,624 shs$0.0006/25/2025$11.81$11.80-0.08%$11.84$11.7835,398 shs$0.0006/24/2025$11.76$11.81+0.47%$11.83$11.7650,165 shs$0.0006/23/2025$11.77$11.76-0.08%$11.80$11.7539,536 shs$0.0006/20/2025$11.77$11.77-0.06%$11.80$11.73486,024 shs$0.0006/19/2025$11.77$11.77$11.90$11.7446,952 shs$0.0006/18/2025$11.91$11.77-1.16%$11.90$11.7446,952 shs$0.0006/17/2025$11.88$11.91+0.29%$11.92$11.8526,747 shs$0.0006/16/2025$11.85$11.88+0.24%$11.91$11.8662,369 shs$0.0006/13/2025$11.85$11.85-0.03%$11.95$11.8121,509 shs$0.0006/12/2025$11.85$11.85+0.04%$11.90$11.8329,886 shs$0.00 This page (NYSE:MIO) was last updated on 7/13/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. 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