Monolithic Power Systems (MPWR) Stock Chart & Stock Price History $904.44 -74.81 (-7.64%) Closing price 10/10/2025 04:00 PM EasternExtended Trading$944.06 +39.62 (+4.38%) As of 06:39 AM 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 InterestSustainabilityTrendsBuy This Stock Monolithic Power Systems Stock Price Performance The Monolithic Power Systems (MPWR) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 3.63%, with a year-to-date return of 52.85%. In the past month, the stock has increased 8.43%, reflecting recent market activity. As of the latest close, Monolithic Power Systems traded at $904.44 with a market cap of $43.32 billion and volume of 870,672 shares. Five years ago, the stock traded at $315.48, representing a 186.69% increase over that period. At the time, it had a market cap of $14.17 billion and a volume of 265,652 shares. Receive MPWR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Monolithic Power Systems 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-7.79%1 Month Performance+8.43%3 Month Performance+22.88%Year-To-Date Performance+52.85%1 Year Performance-3.63%5 Year Performance+186.69% MPWR Stock Chart for Monday, October, 13, 2025 MPWR Chart by TradingView Monolithic Power Systems 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 Capitalization10/10/2025$979.25$904.44-7.64%$990.25$901.39870,672 shs$43.32 billion10/09/2025$980.90$979.25-0.17%$980.10$961.94361,369 shs$46.90 billion10/08/2025$945.49$980.90+3.75%$983.48$945.99570,071 shs$46.98 billion10/07/2025$968.10$945.49-2.34%$972.74$940.88423,009 shs$45.28 billion10/06/2025$918.83$968.10+5.36%$986.63$930.61652,014 shs$46.36 billion10/03/2025$930.51$918.83-1.26%$954.81$916.80420,431 shs$44.00 billion10/02/2025$915.87$930.51+1.60%$940.11$925.05389,284 shs$44.56 billion10/01/2025$920.64$915.87-0.52%$923.34$894.89443,971 shs$43.86 billion09/30/2025$886.59$920.64+3.84%$929.50$894.38505,748 shs$44.09 billion09/29/2025$887.55$886.59-0.11%$915.65$885.92333,067 shs$42.46 billion Get the Latest News and Ratings for MPWR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Monolithic Power Systems and its competitors with MarketBeat's FREE daily newsletter. 09/26/2025$891.39$887.55-0.43%$892.54$877.00304,287 shs$42.50 billion09/25/2025$908.45$891.39-1.88%$898.19$872.29336,450 shs$42.69 billion09/24/2025$914.27$908.45-0.64%$920.33$899.90349,399 shs$43.51 billion09/23/2025$922.81$914.27-0.93%$932.25$907.02425,466 shs$43.78 billion09/22/2025$916.36$922.81+0.70%$938.04$917.79416,254 shs$44.20 billion09/19/2025$917.78$916.36-0.15%$923.37$893.071.23 million shs$43.89 billion09/18/2025$877.66$917.78+4.57%$924.40$890.09853,272 shs$43.95 billion09/17/2025$857.02$877.66+2.41%$884.46$850.00407,610 shs$42.03 billion09/16/2025$849.71$857.02+0.86%$860.20$844.63401,197 shs$41.04 billion09/15/2025$834.14$849.71+1.87%$852.54$831.00393,114 shs$40.69 billion09/12/2025$840.38$834.14-0.74%$844.96$830.00329,688 shs$39.95 billion Related Companies AMAT Stock Chart GOOGL Stock Chart KLAC Stock Chart LRCX Stock Chart MKSI Stock Chart MXL Stock Chart NVDA Stock Chart NXPI Stock Chart ON Stock Chart ANET Stock Chart Receive MPWR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Monolithic Power Systems and its competitors with MarketBeat's FREE daily newsletter. 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