BlackRock MuniYield Quality Fund III (MYI) Stock Chart & Stock Price History $10.51 -0.02 (-0.19%) Closing price 03:58 PM EasternExtended Trading$10.52 +0.02 (+0.14%) As of 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 Compare Share Share Chart Stock AnalysisChartCompetitorsDividendHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock BlackRock MuniYield Quality Fund III Stock Price Performance The BlackRock MuniYield Quality Fund III (MYI) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 8.73%, with a year-to-date return of -4.80%. In the past month, the stock has increased 2.49%, reflecting recent market activity. As of the latest close, BlackRock MuniYield Quality Fund III traded at $10.55 with a market cap of and volume of 173,191 shares. Five years ago, the stock traded at $13.38, representing a 21.45% decrease over that period. At the time, it had a market cap of and a volume of 96,800 shares. Receive MYI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for BlackRock MuniYield Quality Fund III and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. 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Read our full terms of service and privacy policy. 5 Day Performance+0.19%1 Month Performance+2.49%3 Month Performance+1.06%Year-To-Date Performance-4.80%1 Year Performance-8.73%5 Year Performance-21.45% MYI Stock Chart for Thursday, August, 28, 2025 MYI Chart by TradingView BlackRock MuniYield Quality Fund III 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 Capitalization08/27/2025$10.56$10.55-0.09%$10.57$10.52173,191 shs$0.0008/26/2025$10.52$10.56+0.38%$10.57$10.48121,370 shs$0.0008/25/2025$10.49$10.52+0.24%$10.54$10.48143,444 shs$0.0008/22/2025$10.38$10.49+1.06%$10.52$10.41171,760 shs$0.0008/21/2025$10.40$10.38-0.14%$10.39$10.35135,265 shs$0.0008/20/2025$10.46$10.40-0.62%$10.47$10.35165,715 shs$0.0008/19/2025$10.50$10.46-0.33%$10.50$10.45102,418 shs$0.0008/18/2025$10.46$10.50+0.33%$10.52$10.47139,723 shs$0.0008/15/2025$10.53$10.46-0.62%$10.51$10.43147,589 shs$0.0008/14/2025$10.53$10.53-0.05%$10.57$10.49289,835 shs$0.00 Get the Latest News and Ratings for MYI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for BlackRock MuniYield Quality Fund III and its competitors with MarketBeat's FREE daily newsletter. 08/13/2025$10.51$10.53+0.19%$10.56$10.49228,111 shs$0.0008/12/2025$10.48$10.51+0.33%$10.53$10.45212,245 shs$0.0008/11/2025$10.49$10.48-0.10%$10.54$10.46194,481 shs$0.0008/08/2025$10.52$10.49-0.29%$10.56$10.45132,556 shs$0.0008/07/2025$10.51$10.52+0.10%$10.56$10.4991,638 shs$0.0008/06/2025$10.48$10.51+0.24%$10.56$10.49163,751 shs$0.0008/05/2025$10.44$10.48+0.38%$10.51$10.45242,606 shs$0.0008/04/2025$10.39$10.44+0.53%$10.45$10.39159,818 shs$0.0008/01/2025$10.37$10.39+0.14%$10.41$10.33221,442 shs$0.0007/31/2025$10.26$10.37+1.07%$10.38$10.27269,614 shs$0.0007/30/2025$10.27$10.26-0.10%$10.30$10.22154,638 shs$0.0007/29/2025$10.26$10.27+0.15%$10.29$10.24306,377 shs$0.0007/28/2025$10.31$10.26-0.53%$10.31$10.24147,652 shs$0.00 Related Companies BlackRock MuniAssets Fund Stock Chart BlackRock MuniYield Fund Stock Chart BlackRock MuniYield Quality Fund II Stock Chart BlackRock MuniYield Quality Fund Stock Chart Inv Vk Invt Ny Stock Chart Invmun Incom Stock Chart The Central and Eastern Europe Fund Stock Chart Western Asset Intermediate Muni Fund Stock Chart Amcor Stock Chart Tri Continental Stock Chart Receive MYI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for BlackRock MuniYield Quality Fund III and its competitors with MarketBeat's FREE daily newsletter. 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