Monolithic Power Systems (MPWR) Short Interest Ratio & Short Volume $731.38 -3.09 (-0.42%) As of 04:00 PM Eastern 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 1.89 million shares, representing 4.09% of the float (the number of shares available for trading by the public). This marks a -3.57% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.2, indicating that it would take 2.2 days of the average trading volume of 800,863 shares to cover all short positions.Current Short Interest1,890,000 sharesPrevious Short Interest1,960,000 sharesChange Vs. Previous Month-3.57%Dollar Volume Sold Short$1.27 billionShort Interest Ratio2.2 Days to CoverLast Record DateJune 15, 2025Outstanding Shares47,880,000 sharesShort Percent of Float4.09%Today's Trading Volume396,290 sharesAverage Trading Volume800,863 sharesToday's Volume Vs. Average49% 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 6/15/20251,890,000 shares $1.27 billion -3.6%4.1%2.2 $673.01 5/31/20251,960,000 shares $1.28 billion -20.0%4.2%2.2 $655.54 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 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. 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 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 $441.74Crypto Is Pumping Again – Now Comes the Real Opportunity (Ad)This same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in crypto. Now it’s back, and the smart money is already positioning. A free training reveals the step-by-step strategy and altcoin picks designed to help you capitalize on the next wave.Crypto’s Most Powerful Signal Just Triggered - PLUS Claim your $10 in Bitcoin 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 $462.00 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 $484.68Crypto Is Pumping Again – Now Comes the Real Opportunity (Ad)This same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in crypto. Now it’s back, and the smart money is already positioning. A free training reveals the step-by-step strategy and altcoin picks designed to help you capitalize on the next wave.Crypto’s Most Powerful Signal Just Triggered - PLUS Claim your $10 in Bitcoin 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 $494.93 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 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 June 15th, traders have sold 1,890,000 shares of MPWR short. 4.09% 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. 4.09% of Monolithic Power Systems' floating shares are currently sold short. Is Monolithic Power Systems' short interest increasing or decreasing? Monolithic Power Systems saw a drop in short interest in the month of June. As of June 15th, there was short interest totaling 1,890,000 shares, a drop of 3.6% from the previous total of 1,960,000 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? 4.09% of Monolithic Power Systems' shares are currently sold short. Here is how the short interest of companies compare to Monolithic Power Systems: Analog Devices, Inc. (1.52%), Intel Corporation (2.61%), Marvell Technology, Inc. (2.71%), Microchip Technology Incorporated (7.08%), First Solar, Inc. (10.38%), Skyworks Solutions, Inc. (9.26%), MACOM Technology Solutions Holdings, Inc. (3.70%), Altair Engineering Inc. (8.49%), Lattice Semiconductor Corporation (8.18%), Rambus, Inc. (3.41%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($69.26 billion), Invesco QQQ ($25.22 billion), iShares Russell 2000 ETF ($20.33 billion), iShares 20+ Year Treasury Bond ETF ($9.99 billion), MicroStrategy Incorporated ($9.12 billion), Canadian Natural Resources Limited ($6.73 billion), SPDR S&P Biotech ETF ($6.52 billion), Invesco S&P 500 Equal Weight ETF ($5.60 billion), Financial Select Sector SPDR Fund ($4.64 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.59 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 down $1.14 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 increases 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 June, 15 2025. More Short Interest Resources from MarketBeat Related Companies 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 MACOM Technology Solutions Short Interest Data Altair Engineering Short Interest Data Lattice Semiconductor Short Interest Data Rambus 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 6/30/2025 by MarketBeat.com Staff From Our PartnersBuffett’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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