Allegro MicroSystems (ALGM) Short Interest Ratio & Short Volume $26.28 -0.98 (-3.60%) Closing price 04:00 PM EasternExtended Trading$25.75 -0.53 (-2.02%) As of 07:59 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 Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Allegro MicroSystems Short Interest DataAllegro MicroSystems (ALGM) has a short interest of 16.49 million shares, representing 13.48% of the float (the number of shares available for trading by the public). This marks a -1.79% decrease in short interest from the previous month. The short interest ratio (days to cover) is 4.5, indicating that it would take 4.5 days of the average trading volume of 2.58 million shares to cover all short positions.Current Short Interest16,490,000 sharesPrevious Short Interest16,790,000 sharesChange Vs. Previous Month-1.79%Dollar Volume Sold Short$314.46 millionShort Interest Ratio4.5 Days to CoverLast Record DateApril 30, 2025Outstanding Shares184,125,000 sharesFloat Size122,310,000 sharesShort Percent of Float13.48%Today's Trading Volume1,630,888 sharesAverage Trading Volume2,580,439 sharesToday's Volume Vs. Average63% Short Selling Allegro MicroSystems? Sign up to receive the latest short interest report for Allegro MicroSystems and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartALGM Short Interest Over TimeALGM Days to Cover Over TimeALGM Percentage of Float Shorted Over Time Allegro MicroSystems Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/202516,490,000 shares $314.46 million -1.8%13.5%4.5 $19.07 4/15/202516,790,000 shares $333.79 million +16.5%13.7%4.6 $19.88 3/31/202514,410,000 shares $362.12 million -5.8%11.8%4.4 $25.13 3/15/202515,290,000 shares $409.47 million +0.6%12.5%5 $26.78 2/28/202515,200,000 shares $338.96 million +10.4%12.4%5.2 $22.30 2/15/202513,770,000 shares $354.44 million +22.1%11.3%5.7 $25.74 1/31/202511,280,000 shares $271.74 million +4.5%9.3%5.1 $24.09 1/15/202510,790,000 shares $252.49 million +4.0%8.8%5.2 $23.40 12/31/202410,380,000 shares $226.91 million -9.0%8.5%5.3 $21.86 12/15/202411,400,000 shares $250.80 million -12.0%9.3%5.8 $22.00 Get the Latest News and Ratings for ALGM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Allegro MicroSystems and its competitors with MarketBeat's FREE daily newsletter. 11/30/202412,950,000 shares $281.40 million -0.1%10.6%5.7 $21.73 11/15/202412,960,000 shares $247.15 million +5.3%10.6%5.6 $19.07 10/31/202412,310,000 shares $256.54 million +5.3%10.1%5.7 $20.84 10/15/202411,690,000 shares $239.18 million -10.6%9.6%4.5 $20.46 9/30/202413,080,000 shares $304.76 million +27.2%10.7%4.9 $23.30 9/15/202410,280,000 shares $230.68 million +11.7%8.2%4 $22.44 8/31/20249,200,000 shares $225.68 million +3.6%6.9%4.2 $24.53 8/15/20248,880,000 shares $223.07 million +5.7%6.7%4.4 $25.12 7/31/20248,400,000 shares $201.94 million -10.2%6.2%4 $24.04 7/15/20249,350,000 shares $296.58 million -3.1%10.5%6.2 $31.72 6/30/20249,650,000 shares $272.52 million -0.5%10.8%6.8 $28.24 6/15/20249,700,000 shares $271.79 million -0.7%11.1%6.8 $28.02 5/31/20249,770,000 shares $294.47 million +7.1%11.2%6.9 $30.14 5/15/20249,120,000 shares $272.69 million +0.6%10.5%5.9 $29.90 4/30/20249,070,000 shares $269.29 million +4.9%11.5%5.7 $29.69 4/15/20248,650,000 shares $227.15 million +7.6%11.0%4.9 $26.26 3/31/20248,040,000 shares $216.76 million -0.4%10.2%4.6 $26.96 3/15/20248,070,000 shares $221.93 million +2.5%10.3%4.7 $27.50 2/29/20247,870,000 shares $247.83 million +9.6%10.1%4.5 $31.49 2/15/20247,180,000 shares $224.38 million +10.1%9.2%4.5 $31.25 1/31/20246,520,000 shares $169.13 million +12.2%8.3%4.3 $25.94 1/15/20245,810,000 shares $152.34 million +7.8%8.0%4.2 $26.22 12/31/20235,390,000 shares $163.16 million +7.4%7.4%4.1 $30.27 12/15/20235,020,000 shares $156.67 million -5.8%6.9%3.8 $31.21 11/30/20235,330,000 shares $145.08 million -6.2%7.3%4.2 $27.22 11/15/20235,680,000 shares $162.68 million +5.0%7.8%4.3 $28.64 10/31/20235,410,000 shares $140.44 million +8.6%7.4%4.2 $25.96 10/15/20234,980,000 shares $147.01 million +2.9%6.8%3.7 $29.52 9/30/20234,840,000 shares $154.59 million +0.4%6.6%3.3 $31.94 9/15/20234,820,000 shares $158.05 million -19.1%6.6%3.3 $32.79Market Panic: Trump Just Dropped a Bomb on Your Stocks (Ad)tock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tariffs just lit the fuse. Millions of investors are blindsided as stocks plunge… but this is only Phase 1. If you're still holding the wrong assets, you could lose 30% or more in the coming weeks.Don't wait for the next drop to wipe you out. Get the FREE Guide Before Markets Open Tomorrow 8/31/20235,960,000 shares $227.97 million +0.9%8.1%4 $38.25 8/15/20235,910,000 shares $229.96 million -16.6%8.4%4 $38.91 7/31/20237,090,000 shares $365.91 million -5.5%10.1%4.5 $51.61 7/15/20237,500,000 shares $374.03 million +8.7%10.7%4.6 $49.87 6/30/20236,900,000 shares $311.47 million -0.7%9.9%4.5 $45.14 6/15/20236,950,000 shares $279.88 million +6.1%10.0%4.6 $40.27 5/31/20236,550,000 shares $257.61 million +12.5%9.5%4.2 $39.33 5/15/20235,820,000 shares $220.75 million +5.8%8.4%3.7 $37.93 4/30/20235,500,000 shares $196.74 million +4.2%7.9%3.6 $35.77 4/15/20235,280,000 shares $237.81 million -7.7%7.6%3.3 $45.04 3/31/20235,720,000 shares $274.50 million -10.1%8.2%3.7 $47.99 3/15/20236,360,000 shares $282.83 million -3.9%9.1%4.3 $44.47 2/28/20236,620,000 shares $289.16 million -6.6%9.5%4.2 $43.68 2/15/20237,090,000 shares $325.57 million -2.3%10.2%4.6 $45.92 1/31/20237,260,000 shares $277.11 million +5.5%10.5%4.9 $38.17 1/15/20236,880,000 shares $232.13 million +7.5%10.7%5.9 $33.74 12/30/20226,400,000 shares $192.13 million +30.6%10.0%6 $30.02 12/15/20224,900,000 shares $150.04 million +15.8%7.6%4.6 $30.62 11/30/20224,230,000 shares $131.72 million +5.5%6.6%5.2 $31.14 11/15/20224,010,000 shares $117.37 million +35.5%6.2%5.8 $29.27 10/31/20222,960,000 shares $75.21 million +14.3%4.6%5.2 $25.41 10/15/20222,590,000 shares $52.34 million +5.7%4.0%5 $20.21 9/30/20222,450,000 shares $53.53 million +8.4%3.8%4.9 $21.85 9/15/20222,260,000 shares $50.80 million +3.7%3.5%4.8 $22.48 8/31/20222,180,000 shares $50.84 million +5.8%3.4%4.7 $23.32 8/15/20222,060,000 shares $54.55 million -5.9%3.2%3.9 $26.48 7/31/20222,190,000 shares $54.38 million -3.1%3.4%3.6 $24.83 7/15/20222,260,000 shares $47.82 million -1.3%3.6%3.8 $21.16 6/30/20222,290,000 shares $47.38 million -2.1%3.6%3.8 $20.69 6/15/20222,340,000 shares $51.55 million -6.4%3.7%3.8 $22.03 5/31/20222,500,000 shares $64.38 million -1.6%3.9%4.3 $25.75 5/15/20222,540,000 shares $59.99 million -2.7%4.0%4.8 $23.62 4/30/20222,610,000 shares $63.45 million -3.3%4.1%5.5 $24.31 4/15/20222,700,000 shares $64.75 million -5.3%4.2%5 $23.98 3/31/20222,850,000 shares $80.94 million +1.4%4.4%4.9 $28.40 3/15/20222,810,000 shares $72.81 million -4.1%4.4%4.3 $25.91 2/28/20222,930,000 shares $84.00 million -0.3%4.6%4.1 $28.67 2/15/20222,940,000 shares $85.35 million +2.4%4.6%3.9 $29.03 1/31/20222,870,000 shares $81.45 million +1.8%4.5%3.6 $28.38 1/15/20222,820,000 shares $86.74 million -2.1%4.4%3.3 $30.76 12/31/20212,880,000 shares $104.20 million +12.9%4.5%3.6 $36.18 12/15/20212,550,000 shares $88.49 million -4.9%4.0%3.5 $34.70 11/30/20212,680,000 shares $83.70 million +15.0%4.2%3.5 $31.23 11/15/20212,330,000 shares $77.08 million -15.6%3.7%3.2 $33.08 10/29/20212,760,000 shares $92.07 million +6.6%4.4%3.9 $33.36 10/15/20212,590,000 shares $81.20 million +8.8%4.8%4.5 $31.35 9/30/20212,380,000 shares $76.06 million +20.8%4.4%4.2 $31.96 9/15/20211,970,000 shares $71.83 million +16.6%3.6%3.4 $36.46 8/31/20211,690,000 shares $50.78 million +16.6%3.1%3.6 $30.05 8/13/20211,450,000 shares $42.91 million No Change2.7%2.9 $29.59Market Panic: Trump Just Dropped a Bomb on Your Stocks (Ad)tock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tariffs just lit the fuse. Millions of investors are blindsided as stocks plunge… but this is only Phase 1. If you're still holding the wrong assets, you could lose 30% or more in the coming weeks.Don't wait for the next drop to wipe you out. Get the FREE Guide Before Markets Open Tomorrow 7/30/20211,450,000 shares $39.74 million -5.2%2.7%2.5 $27.41 7/15/20211,530,000 shares $39.83 million -2.6%2.9%2.5 $26.03 6/30/20211,570,000 shares $43.49 million +14.6%2.9%2.5 $27.70 6/15/20211,370,000 shares $37.33 million -23.5%2.6%2.1 $27.25 5/28/20211,790,000 shares $46.92 million -11.8%3.4%2.7 $26.21 5/14/20212,030,000 shares $46.45 million -10.6%3.9%2.8 $22.88 4/30/20212,270,000 shares $57.50 million -15.0%4.3%2.7 $25.33 4/15/20212,670,000 shares $69.66 million -3.6%5.1%2.8 $26.09 3/31/20212,770,000 shares $69.03 million -4.8%5.3%2.8 $24.92 3/15/20212,910,000 shares $77.96 million +12.4%5.5%2.7 $26.79 2/26/20212,590,000 shares $69.20 million +16.7%5.1%2.4 $26.72 2/12/20212,220,000 shares $67.80 million -2.2%4.4%2.1 $30.54 1/29/20212,270,000 shares $66.94 million -13.4%6.8%2.3 $29.49 1/15/20212,620,000 shares $87.43 million No Change7.8%2.4 $33.37 ALGM Short Interest - Frequently Asked Questions What is Allegro MicroSystems' current short interest? Short interest is the volume of Allegro MicroSystems shares that have been sold short but have not yet been closed out or covered. As of April 30th, traders have sold 16,490,000 shares of ALGM short. 13.48% of Allegro MicroSystems' shares are currently sold short. Learn More on Allegro MicroSystems' current short interest. What is a good short interest ratio for Allegro MicroSystems? 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. ALGM shares currently have a short interest ratio of 4.0. Learn More on Allegro MicroSystems's short interest ratio. Which institutional investors are shorting Allegro MicroSystems? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Allegro MicroSystems: Jane Street Group LLC, TIG Advisors LLC, Cubist Systematic Strategies LLC, Caption Management LLC, PEAK6 LLC, Walleye Trading LLC, Walleye Capital LLC, Simplex Trading LLC, and IMC Chicago LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Allegro MicroSystems? 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. 13.48% of Allegro MicroSystems' floating shares are currently sold short. Is Allegro MicroSystems' short interest increasing or decreasing? Allegro MicroSystems saw a decrease in short interest during the month of April. As of April 30th, there was short interest totaling 16,490,000 shares, a decrease of 1.8% from the previous total of 16,790,000 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. What is Allegro MicroSystems' float size? Allegro MicroSystems currently has issued a total of 184,125,000 shares. Some of Allegro MicroSystems' outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Allegro MicroSystems currently has a public float of 122,310,000 shares. How does Allegro MicroSystems' short interest compare to its competitors? 13.48% of Allegro MicroSystems' shares are currently sold short. Here is how the short interest of companies in the industry of "electronic equipment" compare to Allegro MicroSystems: Flex Ltd. (2.23%), Astera Labs, Inc. (8.68%), Celestica Inc. (3.09%), Leonardo DRS, Inc. (3.27%), Credo Technology Group Holding Ltd (6.99%), Nextracker Inc. (6.31%), Universal Display Co. (3.31%), Qorvo, Inc. (6.64%), Lumentum Holdings Inc. (15.52%), SiTime Co. (5.35%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 billion). View all of the most shorted stocks. What does it mean to sell short Allegro MicroSystems stock? Short selling ALGM is an investing strategy that aims to generate trading profit from Allegro MicroSystems as its price is falling. ALGM shares are trading down $0.98 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 Allegro MicroSystems? A short squeeze for Allegro MicroSystems 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 ALGM, which in turn drives the price of the stock up even further. How often is Allegro MicroSystems' 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 ALGM, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies Flex Short Interest Data Astera Labs Short Interest Data Celestica Short Interest Data Leonardo DRS Short Interest Data Credo Technology Group Short Interest Data Nextracker Short Interest Data Universal Display Short Interest Data Qorvo Short Interest Data Lumentum Short Interest Data SiTime 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:ALGM) was last updated on 5/21/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredGold Hits New Highs as Global Markets SpiralWhen Trump took office in 2017, gold was just $1,100 an ounce. 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