Pioneer Municipal High Income Opportunities Fund (MIO) Stock Chart & Stock Price History $11.80 +0.02 (+0.13%) Closing price 05/23/2025 03:57 PM EasternExtended Trading$11.80 0.00 (0.00%) As of 05/23/2025 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 increased 4.47%, with a year-to-date return of -0.46%. In the past month, the stock has increased 2.12%, reflecting recent market activity. As of the latest close, Pioneer Municipal High Income Opportunities Fund traded at $11.81 with a market cap of and volume of 12,478 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-0.71%1 Month Performance+2.12%3 Month Performance-1.99%Year-To-Date Performance-0.46%1 Year Performance+4.47% MIO Stock Chart for Saturday, May, 24, 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 Capitalization05/23/2025$11.80$11.81+0.05%$11.83$11.7912,478 shs$0.0005/22/2025$11.79$11.80+0.12%$11.87$11.7350,526 shs$0.0005/21/2025$11.89$11.79-0.88%$11.93$11.78147,326 shs$0.0005/20/2025$11.89$11.89$11.99$11.8725,045 shs$0.0005/19/2025$11.93$11.89-0.34%$11.93$11.8715,017 shs$0.0005/16/2025$11.97$11.93-0.33%$11.98$11.9271,125 shs$0.0005/15/2025$12.00$11.97-0.25%$12.02$11.9350,520 shs$0.0005/14/2025$12.00$12.00$12.12$11.9449,059 shs$0.0005/13/2025$11.96$12.00+0.33%$12.06$11.9440,420 shs$0.0005/12/2025$12.00$11.96-0.33%$12.10$11.9447,129 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. 05/09/2025$11.60$12.00+3.44%$12.09$11.95189,448 shs$0.0005/08/2025$11.59$11.60+0.09%$11.75$11.6220,367 shs$0.0005/07/2025$11.65$11.59-0.55%$11.75$11.5913,888 shs$0.0005/06/2025$11.74$11.65-0.73%$11.82$11.6030,878 shs$0.0005/05/2025$11.76$11.74-0.17%$11.79$11.6516,856 shs$0.0005/02/2025$11.79$11.76-0.21%$11.84$11.7014,681 shs$0.0005/01/2025$11.82$11.79-0.30%$11.86$11.6428,671 shs$0.0004/30/2025$11.58$11.82+2.07%$11.82$11.5537,738 shs$0.0004/29/2025$11.60$11.58-0.17%$11.64$11.5028,691 shs$0.0004/28/2025$11.61$11.60-0.09%$11.67$11.5119,605 shs$0.0004/25/2025$11.56$11.61+0.43%$11.65$11.5338,101 shs$0.0004/24/2025$11.41$11.56+1.36%$11.56$11.3742,716 shs$0.0004/23/2025$11.30$11.41+0.93%$11.47$11.2827,781 shs$0.00 This page (NYSE:MIO) was last updated on 5/24/2025 by MarketBeat.com Staff From Our PartnersWatch This Robotics Demo Before July 23rdJeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... ...Brownstone Research | SponsoredBuffett’s $325 Billion Cash Problem — Solved by Gold?A bombshell announcement is just weeks away — and it could send shockwaves through the gold market. 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