Monolithic Power Systems (MPWR) Short Interest Ratio & Short Volume $706.28 +19.20 (+2.79%) Closing price 06/9/2025 04:00 PM EasternExtended Trading$710.32 +4.05 (+0.57%) As of 08:05 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 Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Monolithic Power Systems Short Interest DataMonolithic Power Systems (MPWR) has a short interest of 2.45 million shares, representing 5.22% of the float (the number of shares available for trading by the public). This marks a 21.29% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.5, indicating that it would take 2.5 days of the average trading volume of 794,126 shares to cover all short positions.Current Short Interest2,450,000 sharesPrevious Short Interest2,020,000 sharesChange Vs. Previous Month+21.29%Dollar Volume Sold Short$1.74 billionShort Interest Ratio2.5 Days to CoverLast Record DateMay 15, 2025Outstanding Shares47,880,000 sharesShort Percent of Float5.22%Today's Trading Volume550,315 sharesAverage Trading Volume794,126 sharesToday's Volume Vs. Average69% Short Selling Monolithic Power Systems? Sign up to receive the latest short interest report for Monolithic Power Systems and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMPWR Short Interest Over TimeMPWR Days to Cover Over TimeMPWR Percentage of Float Shorted Over Time Monolithic Power Systems Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 5/15/20252,450,000 shares $1.74 billion +21.3%5.2%2.5 $710.32 4/30/20252,020,000 shares $1.20 billion -23.2%N/A2 $593.10 4/15/20252,630,000 shares $1.43 billion +7.4%5.6%2.6 $544.25 3/31/20252,450,000 shares $1.42 billion +6.5%5.2%2.5 $579.98 3/15/20252,300,000 shares $1.39 billion -11.5%4.9%2.6 $606.06 2/28/20252,600,000 shares $1.59 billion -4.4%5.5%3 $611.01 2/15/20252,720,000 shares $1.86 billion -0.7%5.8%3 $684.93 1/31/20252,740,000 shares $1.75 billion +5.8%N/A2.6 $637.37 1/15/20252,590,000 shares $1.56 billion -9.1%N/A2.6 $602.41 12/31/20242,850,000 shares $1.69 billion +22.8%N/A3.1 $591.70 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. 12/15/20242,320,000 shares $1.41 billion +11.0%N/A2.6 $608.44 11/30/20242,090,000 shares $1.19 billion -17.1%N/A2.5 $567.64 11/15/20242,520,000 shares $1.44 billion +69.1%N/A3.1 $573.38 10/31/20241,490,000 shares $1.13 billion +15.5%N/A2.3 $759.30 10/15/20241,290,000 shares $1.15 billion -17.3%N/A2.3 $894.69 9/30/20241,560,000 shares $1.44 billion +9.1%N/A2.7 $924.50 9/15/20241,430,000 shares $1.31 billion -7.1%N/A2.5 $914.10 8/31/20241,540,000 shares $1.44 billion +5.5%N/A2.7 $934.68 8/15/20241,460,000 shares $1.34 billion +10.6%N/A2.7 $920.69 7/31/20241,320,000 shares $1.14 billion -24.6%N/A2.5 $863.09 7/15/20241,750,000 shares $1.52 billion -1.7%N/A3.5 $870.91 6/30/20241,780,000 shares $1.46 billion +16.3%N/A3.7 $821.68 6/15/20241,530,000 shares $1.23 billion +9.3%N/A3.1 $806.57 5/31/20241,400,000 shares $1.03 billion +43.0%N/A2.8 $735.63 5/15/2024979,100 shares $725.85 million +12.6%N/A1.9 $741.34 4/30/2024869,300 shares $581.85 million -6.5%N/A1.5 $669.33 4/15/2024929,300 shares $600.91 million -13.2%N/A1.7 $646.63 3/31/20241,070,000 shares $724.84 million +10.8%N/A2 $677.42 3/15/2024965,700 shares $663.43 million +2.6%N/A1.8 $686.99 2/29/2024941,600 shares $677.99 million -0.7%N/A1.8 $720.04 2/15/2024948,000 shares $696.14 million -11.4%2.1%2 $734.32 1/31/20241,070,000 shares $644.91 million -5.3%2.3%2.3 $602.72 1/15/20241,130,000 shares $654.00 million -24.2%2.5%2.2 $578.76 12/31/20231,490,000 shares $939.86 million +1.4%3.3%2.9 $630.78 12/15/20231,470,000 shares $930.97 million +15.8%3.2%2.8 $633.31 11/30/20231,270,000 shares $696.87 million -1.6%2.8%2.4 $548.72 11/15/20231,290,000 shares $706.40 million +21.7%2.8%2.4 $547.60 10/31/20231,060,000 shares $468.24 million -21.5%2.3%1.9 $441.74 10/15/20231,350,000 shares $642.26 million -20.1%3.0%2.5 $475.75 9/30/20231,690,000 shares $780.78 million +24.3%3.7%3.2 $462.00Trump’s Exec Order #14154 could be a “Millionaire-Maker” (Ad)Former Presidential Advisor, Jim Rickards, says Trump could “rewire our economy and hand millions of Americans a chance at true financial independence in the months ahead.” We recently sat down with Rickards to capture all the key details on tape. For the moment, you can watch this interview free of charge – just click here. 9/15/20231,360,000 shares $631.35 million -6.2%3.0%2.6 $464.23 8/31/20231,450,000 shares $755.75 million -4.0%3.2%2.7 $521.21 8/15/20231,510,000 shares $783.52 million -6.8%3.3%2.4 $518.89 7/31/20231,620,000 shares $906.37 million -19.8%3.6%2.5 $559.49 7/15/20232,020,000 shares $1.14 billion -2.4%4.5%3.2 $565.01 6/30/20232,070,000 shares $1.12 billion -8.8%4.6%3.5 $540.23 6/15/20232,270,000 shares $1.18 billion -18.6%5.1%3.8 $519.28 5/31/20232,790,000 shares $1.37 billion +35.4%6.2%4.7 $489.91 5/15/20232,060,000 shares $849.87 million -5.5%4.6%4.2 $412.56 4/30/20232,180,000 shares $1.01 billion -6.8%4.9%4.3 $461.97 4/15/20232,340,000 shares $1.12 billion -6.0%5.2%4.8 $477.27 3/31/20232,490,000 shares $1.25 billion -2.7%5.6%5 $500.54 3/15/20232,560,000 shares $1.22 billion -9.9%5.7%4.9 $476.61 2/28/20232,840,000 shares $1.38 billion +2.2%6.4%5.2 $484.29 2/15/20232,780,000 shares $1.47 billion -1.4%6.3%4.9 $530.09 1/31/20232,820,000 shares $1.20 billion +1.1%6.4%4.8 $426.56 1/15/20232,790,000 shares $1.11 billion -8.5%6.3%4.3 $398.46 12/30/20223,050,000 shares $1.08 billion -4.1%6.9%4.3 $353.61 12/15/20223,180,000 shares $1.19 billion +10.4%7.2%4.1 $373.30 11/30/20222,880,000 shares $1.10 billion +5.1%6.5%3.8 $381.96 11/15/20222,740,000 shares $1.11 billion +5.0%6.2%3.6 $405.03 10/31/20222,610,000 shares $885.96 million +13.5%5.9%3.6 $339.45 10/15/20222,300,000 shares $711.16 million +13.9%5.2%3.4 $309.20 9/30/20222,020,000 shares $734.07 million +46.4%4.6%3.3 $363.40 9/15/20221,380,000 shares $578.05 million +17.0%3.1%2.6 $418.88 8/31/20221,180,000 shares $534.75 million +5.4%2.7%2.4 $453.18 8/15/20221,120,000 shares $601.31 million +4.7%2.6%2.4 $536.88 7/31/20221,070,000 shares $497.25 million +23.9%2.4%2.2 $464.72 7/15/2022863,300 shares $354.17 million +0.2%2.0%1.8 $410.25 6/30/2022861,400 shares $330.81 million -1.5%2.0%1.8 $384.04 6/15/2022874,800 shares $364.08 million -5.2%2.2%1.8 $416.19 5/31/2022923,100 shares $415.76 million +2.3%2.1%1.9 $450.39 5/15/2022902,100 shares $389.41 million -7.3%2.1%1.8 $431.67 4/30/2022972,700 shares $381.53 million +7.5%2.2%1.9 $392.24 4/15/2022904,900 shares $370.45 million -17.0%2.1%1.8 $409.38 3/31/20221,090,000 shares $529.39 million +22.5%2.5%2.1 $485.68 3/15/2022889,600 shares $375.25 million +8.2%2.0%1.9 $421.82 2/28/2022821,900 shares $377.01 million +4.6%1.9%1.8 $458.70 2/15/2022786,100 shares $376.75 million +9.5%1.8%1.8 $479.27 1/31/2022717,800 shares $289.22 million -24.3%1.7%1.9 $402.93 1/15/2022948,200 shares $415.48 million -2.0%2.2%2.7 $438.18 12/31/2021967,800 shares $477.44 million +9.8%2.2%3.1 $493.33 12/15/2021881,400 shares $432.24 million +9.2%2.0%2.7 $490.40 11/30/2021806,900 shares $446.59 million -4.2%1.9%2.6 $553.46 11/15/2021842,600 shares $474.35 million -1.5%1.9%2.7 $562.96 10/29/2021855,700 shares $449.64 million +2.2%2.0%2.7 $525.46 10/15/2021837,400 shares $402.82 million +13.3%1.9%2.6 $481.04 9/30/2021739,000 shares $358.18 million -15.2%1.7%2.1 $484.68 9/15/2021871,900 shares $432.45 million -12.8%2.0%2.4 $495.99 8/31/20211,000,000 shares $494.93 million +6.9%2.3%2.9 $494.93The Robotics Revolution has arrived … and one $7 stock could take off as a result. (Ad)It could very well mark the beginning of a new multitrillion-dollar industrial revolution. Up until now, we've imagined robots doing things like cleaning our homes, serving drinks at restaurants, greeting guests in hotel lobbies, stacking shelves in warehouses, and so on. Very soon, there will be a robot that won't do any of that. However, it's impact on the US economy and society will be FAR greater than anything we ever imagined.This little-known company holds nearly 100 patents and trades for around $7 8/13/2021935,300 shares $434.77 million -12.6%2.2%2.8 $464.85 7/30/20211,070,000 shares $480.71 million +39.7%2.5%2.9 $449.26 7/15/2021765,700 shares $290.59 million +10.2%1.8%2.1 $379.51 6/30/2021695,000 shares $259.55 million +15.6%1.6%2.1 $373.45 6/15/2021601,400 shares $207.73 million -13.8%1.4%1.8 $345.41 5/28/2021697,700 shares $239.39 million +6.3%1.6%1.9 $343.12 5/14/2021656,300 shares $201.04 million +13.1%N/A1.6 $306.33 4/30/2021580,400 shares $215.39 million -9.8%N/A1 $371.11 4/15/2021643,200 shares $237.93 million -6.7%1.5%1.1 $369.92 3/31/2021689,600 shares $236.25 million +13.4%1.6%1.1 $342.59 3/15/2021607,900 shares $201.21 million -5.7%1.4%1 $331.00 2/26/2021644,500 shares $233.69 million -25.8%1.5%1 $362.59 2/12/2021868,000 shares $333.89 million +40.3%2.0%1.4 $384.67 1/29/2021618,500 shares $227.60 million -13.0%1.5%1.3 $367.98 1/15/2021710,800 shares $274.51 million -32.3%1.7%1.5 $386.20 12/31/20201,050,000 shares $378.77 million -2.8%2.5%2.2 $360.73 12/15/20201,080,000 shares $345.02 million +22.0%2.5%2.4 $319.46 11/30/2020885,200 shares $290.47 million -2.3%2.1%2.1 $328.14 11/15/2020906,300 shares $278.19 million -15.3%2.1%2.5 $306.95 10/30/20201,070,000 shares $340.93 million +2.9%2.5%3.3 $318.63 10/15/20201,040,000 shares $326.97 million +4.0%2.5%3.4 $314.39 9/30/20201,000,000 shares $279.61 million +3.2%2.4%3.3 $279.61 9/15/2020968,900 shares $250.63 million +0.5%2.3%3.1 $258.67 8/31/2020963,800 shares $257.46 million -5.5%2.3%3 $267.13 8/14/20201,020,000 shares $281.38 million -4.7%2.4%3.2 $275.86 7/31/20201,070,000 shares $283.56 million -1.8%2.5%3.1 $265.01 7/15/20201,090,000 shares $271.98 million -7.6%2.6%3.1 $249.52 6/30/20201,180,000 shares $279.66 million +13.5%2.8%3.3 $237.00 6/15/20201,040,000 shares $228.61 million -1.0%2.5%2.8 $219.82 MPWR Short Interest - Frequently Asked Questions What is Monolithic Power Systems' current short interest? Short interest is the volume of Monolithic Power Systems shares that have been sold short but have not yet been covered or closed out. As of May 15th, investors have sold 2,450,000 shares of MPWR short. 5.22% of Monolithic Power Systems' shares are currently sold short. Learn More on Monolithic Power Systems' current short interest. What is a good short interest ratio for Monolithic Power Systems? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. MPWR shares currently have a short interest ratio of 2.0. Learn More on Monolithic Power Systems's short interest ratio. Which institutional investors are shorting Monolithic Power Systems? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Monolithic Power Systems: Quaker Wealth Management LLC, Jane Street Group LLC, Parallax Volatility Advisers L.P., Millennium Management LLC, Cubist Systematic Strategies LLC, Caption Management LLC, Twin Tree Management LP, HAP Trading LLC, PEAK6 LLC, Walleye Trading LLC, Walleye Capital LLC, Capital Fund Management S.A., Maven Securities LTD, Arrowpoint Investment Partners Singapore Pte. Ltd., and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Monolithic Power Systems? Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 5.22% of Monolithic Power Systems' floating shares are currently sold short. Is Monolithic Power Systems' short interest increasing or decreasing? Monolithic Power Systems saw a increase in short interest in the month of May. As of May 15th, there was short interest totaling 2,450,000 shares, an increase of 21.3% from the previous total of 2,020,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. How does Monolithic Power Systems' short interest compare to its competitors? 5.22% of Monolithic Power Systems' shares are currently sold short. Here is how the short interest of companies compare to Monolithic Power Systems: Micron Technology, Inc. (3.09%), Analog Devices, Inc. (1.74%), Intel Co. (2.84%), Marvell Technology, Inc. (3.02%), Microchip Technology Incorporated (5.80%), First Solar, Inc. (11.67%), Skyworks Solutions, Inc. (11.16%), Altair Engineering Inc. (8.49%), MACOM Technology Solutions Holdings, Inc. (3.39%), Lattice Semiconductor Co. (8.16%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($29.20 billion), Strategy Incorporated ($10.88 billion), iShares 20+ Year Treasury Bond ETF ($10.04 billion), Capital One Financial Co. ($5.51 billion), Charter Communications, Inc. ($5.00 billion), Super Micro Computer, Inc. ($4.43 billion), Apollo Global Management, Inc. ($4.02 billion), Hims & Hers Health, Inc. ($3.65 billion), VanEck Semiconductor ETF ($3.27 billion), and Coinbase Global, Inc. ($3.10 billion). View all of the most shorted stocks. What does it mean to sell short Monolithic Power Systems stock? Short selling MPWR is an investing strategy that aims to generate trading profit from Monolithic Power Systems as its price is falling. MPWR shares are trading up $19.20 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against Monolithic Power Systems? A short squeeze for Monolithic Power Systems occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of MPWR, which in turn drives the price of the stock up even further. How often is Monolithic Power Systems' short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including MPWR, twice per month. The most recent reporting period available is May, 15 2025. More Short Interest Resources from MarketBeat Related Companies Micron Technology Short Interest Data Analog Devices Short Interest Data Intel Short Interest Data Marvell Technology Short Interest Data Microchip Technology Short Interest Data First Solar Short Interest Data Skyworks Solutions Short Interest Data Altair Engineering Short Interest Data MACOM Technology Solutions Short Interest Data Lattice Semiconductor Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:MPWR) was last updated on 6/10/2025 by MarketBeat.com Staff From Our PartnersTrump’s Exec Order #14154 could be a “Millionaire-Maker”Former Presidential Advisor, Jim Rickards, says Trump could “rewire our economy and hand millions of Americans...Paradigm Press | SponsoredElon’s BIGGEST warning yet?Tesla's About to Prove Everyone Wrong... 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