United Microelectronics (UMC) Stock Chart & Stock Price History $7.86 -0.06 (-0.76%) As of 05/20/2025 03:58 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock United Microelectronics Stock Price Performance The United Microelectronics (UMC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 7.47%, with a year-to-date return of 21.11%. In the past month, the stock has increased 16.79%, reflecting recent market activity. As of the latest close, United Microelectronics traded at $7.86 with a market cap of $19.70 billion and volume of 3.35 million shares. Five years ago, the stock traded at $2.47, representing a 218.22% increase over that period. At the time, it had a market cap of $5.70 billion and a volume of 458,068 shares. 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Email Address 5 Day Performance+0.32%1 Month Performance+16.79%3 Month Performance+21.39%Year-To-Date Performance+21.11%1 Year Performance-7.47%5 Year Performance+218.22% UMC Stock Chart for Wednesday, May, 21, 2025 UMC Chart by TradingView United Microelectronics 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 Capitalization05/20/2025$7.91$7.86-0.63%$7.90$7.813.35 million shs$19.70 billion05/19/2025$7.84$7.91+0.96%$7.92$7.796.74 million shs$19.82 billion05/16/2025$7.83$7.84+0.06%$7.90$7.814.51 million shs$19.63 billion05/15/2025$7.72$7.83+1.42%$7.85$7.766.39 million shs$19.62 billion05/14/2025$7.74$7.72-0.26%$7.80$7.717.29 million shs$19.35 billion05/13/2025$7.69$7.74+0.72%$7.76$7.659.56 million shs$19.40 billion05/12/2025$7.45$7.69+3.15%$7.77$7.5522.17 million shs$19.26 billion05/09/2025$7.39$7.45+0.88%$7.53$7.399.52 million shs$18.67 billion05/08/2025$7.49$7.39-1.45%$7.50$7.368.33 million shs$18.51 billion05/07/2025$7.39$7.49+1.48%$7.50$7.3411.90 million shs$18.78 billion Get the Latest News and Ratings for UMC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for United Microelectronics and its competitors with MarketBeat's FREE daily newsletter. 05/06/2025$7.43$7.39-0.54%$7.45$7.2914.97 million shs$18.51 billion05/05/2025$7.33$7.43+1.30%$7.60$7.3910.60 million shs$18.61 billion05/02/2025$6.99$7.33+4.86%$7.36$7.2413.06 million shs$18.37 billion05/01/2025$7.05$6.99-0.85%$7.10$6.987.70 million shs$17.52 billion04/30/2025$6.92$7.05+1.88%$7.06$6.919.76 million shs$17.67 billion04/29/2025$6.94$6.92-0.29%$7.00$6.909.90 million shs$17.34 billion04/28/2025$6.87$6.94+1.02%$6.95$6.838.03 million shs$17.39 billion04/25/2025$6.91$6.87-0.58%$6.92$6.768.57 million shs$17.22 billion04/24/2025$7.00$6.91-1.29%$6.94$6.7115.71 million shs$17.32 billion04/23/2025$6.79$7.00+3.17%$7.19$6.8616.93 million shs$17.54 billion04/22/2025$6.73$6.79+0.82%$6.87$6.7412.44 million shs$17.00 billion04/21/2025$6.81$6.73-1.10%$6.77$6.6410.04 million shs$16.87 billion Related Companies NXP Semiconductors Stock Chart L3Harris Technologies Stock Chart Vertiv Stock Chart Nokia Oyj Stock Chart Telefonaktiebolaget LM Ericsson (publ) Stock Chart Ubiquiti Stock Chart STMicroelectronics Stock Chart ASE Technology Stock Chart GlobalFoundries Stock Chart Hubbell Stock Chart Receive UMC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for United Microelectronics and its competitors with MarketBeat's FREE daily newsletter. 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