Arcellx (ACLX) Short Interest Ratio & Short Volume $66.58 +0.07 (+0.11%) As of 01:23 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Arcellx Short Interest DataArcellx (ACLX) has a short interest of 6.58 million shares, representing 16.66% of the float (the number of shares available for trading by the public). This marks a -7.71% decrease in short interest from the previous month. The short interest ratio (days to cover) is 8.6, indicating that it would take 8.6 days of the average trading volume of 603,991 shares to cover all short positions.Current Short Interest6,580,000 sharesPrevious Short Interest7,130,000 sharesChange Vs. Previous Month-7.71%Dollar Volume Sold Short$418.29 millionShort Interest Ratio8.6 Days to CoverLast Record DateMay 31, 2025Outstanding Shares55,107,000 sharesFloat Size39,500,000 sharesShort Percent of Float16.66%Today's Trading Volume160,273 sharesAverage Trading Volume603,991 sharesToday's Volume Vs. Average27% Short Selling Arcellx? Sign up to receive the latest short interest report for Arcellx and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartACLX Short Interest Over TimeACLX Days to Cover Over TimeACLX Percentage of Float Shorted Over Time Arcellx Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 5/31/20256,580,000 shares $418.29 million -7.7%16.7%8.6 $63.57 5/15/20257,130,000 shares $416.75 million +1.1%18.1%8.9 $58.45 4/30/20257,050,000 shares $457.90 million No Change17.9%10 $64.95 4/15/20257,050,000 shares $433.08 million +1.4%17.9%10.9 $61.43 3/31/20256,950,000 shares $455.92 million -1.4%17.3%10 $65.60 3/15/20257,050,000 shares $505.34 million -1.5%17.5%10.8 $71.68 2/28/20257,160,000 shares $464.11 million -1.0%17.8%11.1 $64.82 2/15/20257,230,000 shares $471.61 million -1.1%17.8%12.1 $65.23 1/31/20257,310,000 shares $498.03 million +9.1%18.0%11.9 $68.13 1/15/20256,700,000 shares $452.32 million +15.3%16.5%10.6 $67.51 Get the Latest News and Ratings for ACLX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Arcellx and its competitors with MarketBeat's FREE daily newsletter. 12/31/20245,810,000 shares $445.57 million +6.6%14.3%9.7 $76.69 12/15/20245,450,000 shares $456.71 million +4.2%13.4%9.5 $83.80 11/30/20245,230,000 shares $460.61 million +17.5%12.9%9.6 $88.07 11/15/20244,450,000 shares $390.84 million +13.2%10.9%8.3 $87.83 10/31/20243,930,000 shares $331.18 million -5.8%9.7%7.5 $84.27 10/15/20244,170,000 shares $374.92 million +5.3%10.3%8.9 $89.91 9/30/20243,960,000 shares $330.70 million -16.6%9.8%8.6 $83.51 9/15/20244,750,000 shares $365.23 million -6.1%11.8%10.2 $76.89 8/31/20245,060,000 shares $347.82 million +0.6%12.5%11 $68.74 8/15/20245,030,000 shares $326.25 million +12.5%12.5%10.9 $64.86 7/31/20244,470,000 shares $276.29 million -10.6%11.1%9.3 $61.81 7/15/20245,000,000 shares $316.75 million +4.8%12.5%10.5 $63.35 6/30/20244,770,000 shares $263.26 million -0.8%11.9%10 $55.19 6/15/20244,810,000 shares $261.71 million +10.3%12.0%10.4 $54.41 5/31/20244,360,000 shares $226.72 million +12.7%10.9%9.4 $52.00 5/15/20243,870,000 shares $200.16 million No Change9.7%8.1 $51.72 4/30/20243,870,000 shares $193.58 million -4.0%8.9%8.5 $50.02 4/15/20244,030,000 shares $229.55 million +6.9%10.1%8.8 $56.96 3/31/20243,770,000 shares $262.20 million +4.4%9.9%8.6 $69.55 3/15/20243,610,000 shares $254.94 million +5.3%9.8%7.9 $70.62 2/29/20243,430,000 shares $225.76 million -3.7%9.3%6.3 $65.82 2/15/20243,560,000 shares $227.09 million -10.3%10.3%6.3 $63.79 1/31/20243,970,000 shares $245.50 million +1.0%11.9%6 $61.84 1/15/20243,930,000 shares $218.35 million -1.3%12.0%5.3 $55.56 12/31/20233,980,000 shares $220.89 million -14.8%12.2%5.4 $55.50 12/15/20234,670,000 shares $238.73 million -7.9%13.0%6.4 $51.12 11/30/20235,070,000 shares $266.33 million -7.8%14.4%7.9 $52.53 11/15/20235,500,000 shares $274.95 million -7.1%15.7%9.4 $49.99 10/31/20235,920,000 shares $208.68 million +6.3%16.9%11.1 $35.25 10/15/20235,570,000 shares $184.53 million -11.0%15.9%13.1 $33.13Everyone’s watching Nvidia right now. 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(Ad)So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal with Saudi Arabia to power its new AI empire 🤯 We’re talking about hundreds of thousands of chips, including their latest Grace Blackwell supercomputer.🎯 Click here to watch the video and get the free ticker XGPT just flagged. 9/30/20236,260,000 shares $224.61 million +1.0%17.9%15 $35.88 9/15/20236,200,000 shares $204.97 million -6.1%17.7%14.1 $33.06 8/31/20236,600,000 shares $236.54 million -17.0%18.9%12.3 $35.84 8/15/20237,950,000 shares $285.48 million +1.9%23.6%14.2 $35.91 7/31/20237,800,000 shares $267.15 million -0.1%25.7%14.1 $34.25 7/15/20237,810,000 shares $260.54 million +2.4%25.7%12.8 $33.36 6/30/20237,630,000 shares $241.26 million +16.7%26.3%12.1 $31.62 6/15/20236,540,000 shares $242.24 million +7.2%23.4%10.2 $37.04 5/31/20236,100,000 shares $269.32 million +0.5%21.6%11.1 $44.15 5/15/20236,070,000 shares $263.74 million +5.4%22.1%11.8 $43.45 4/30/20235,760,000 shares $245.84 million +6.9%22.1%11.7 $42.68 4/15/20235,390,000 shares $167.14 million +7.8%22.4%11.6 $31.01 3/31/20235,000,000 shares $154.05 million +42.5%22.5%11.9 $30.81 3/15/20233,510,000 shares $102.81 million +12.5%15.9%8.6 $29.29 2/28/20233,120,000 shares $87.39 million +8.0%14.1%5.4 $28.01 2/15/20232,890,000 shares $86.87 million +4.7%13.1%4.9 $30.06 1/31/20232,760,000 shares $92.21 million +1.9%10.8%4.5 $33.41 1/15/20232,710,000 shares $87.15 million +13.4%10.6%4.3 $32.16 12/30/20222,390,000 shares $74.04 million -2.9%9.4%3.9 $30.98 12/15/20222,460,000 shares $76.33 million -13.7%11.1%4.2 $31.03 11/30/20222,850,000 shares $56.83 million -3.4%12.8%5.4 $19.94 11/15/20222,950,000 shares $64.16 million +8.1%13.3%5.8 $21.75 10/31/20222,730,000 shares $64.10 million -6.5%12.8%5.6 $23.48 10/15/20222,920,000 shares $56.36 million -3.6%13.7%6.3 $19.30 9/30/20223,030,000 shares $56.87 million +129.6%14.2%6.6 $18.77 9/15/20221,320,000 shares $27.40 million +33.6%6.2%3 $20.76 8/31/2022988,000 shares $17.75 million -5.0%4.6%2.5 $17.97 8/15/20221,040,000 shares $20.01 million +12.3%4.9%2.9 $19.24 7/31/2022926,500 shares $19.21 million +9.7%5.4%2.9 $20.73 7/15/2022844,900 shares $14.08 million No Change5.0%3.2 $16.67 ACLX Short Interest - Frequently Asked Questions What is Arcellx's current short interest? Short interest is the volume of Arcellx shares that have been sold short but have not yet been closed out or covered. As of May 31st, investors have sold 6,580,000 shares of ACLX short. 16.66% of Arcellx's shares are currently sold short. Learn More on Arcellx's current short interest. What is a good short interest ratio for Arcellx? 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. ACLX shares currently have a short interest ratio of 9.0. Learn More on Arcellx's short interest ratio. Which institutional investors are shorting Arcellx? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Arcellx: Caption Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Arcellx? 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. 16.66% of Arcellx's floating shares are currently sold short. Is Arcellx's short interest increasing or decreasing? Arcellx saw a decrease in short interest in May. As of May 31st, there was short interest totaling 6,580,000 shares, a decrease of 7.7% from the previous total of 7,130,000 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 Arcellx's float size? Arcellx currently has issued a total of 55,107,000 shares. Some of Arcellx's 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. Arcellx currently has a public float of 39,500,000 shares. How does Arcellx's short interest compare to its competitors? 16.66% of Arcellx's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Arcellx: Summit Therapeutics Inc. (28.33%), Dr. Reddy's Laboratories Limited (1.74%), Ascendis Pharma A/S (9.28%), Moderna, Inc. (19.23%), Viatris Inc. (4.33%), Qiagen (2.96%), Blueprint Medicines Co. (9.93%), Roivant Sciences Ltd. (10.63%), Revolution Medicines, Inc. (11.86%), Verona Pharma plc (9.37%), 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 ($64.96 billion), Invesco QQQ ($27.88 billion), iShares Russell 2000 ETF ($19.94 billion), iShares 20+ Year Treasury Bond ETF ($9.69 billion), Strategy Incorporated ($8.58 billion), SPDR S&P Biotech ETF ($5.72 billion), Invesco S&P 500 Equal Weight ETF ($5.45 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.70 billion), Charter Communications, Inc. ($4.54 billion), and Industrial Select Sector SPDR Fund ($4.49 billion). View all of the most shorted stocks. What does it mean to sell short Arcellx stock? Short selling ACLX is an investing strategy that aims to generate trading profit from Arcellx as its price is falling. ACLX shares are trading up $0.07 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 Arcellx? A short squeeze for Arcellx 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 ACLX, which in turn drives the price of the stock up even further. How often is Arcellx's 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 ACLX, twice per month. The most recent reporting period available is May, 31 2025. More Short Interest Resources from MarketBeat Related Companies SMMT Short Interest RDY Short Interest ASND Short Interest MRNA Short Interest VTRS Short Interest QGEN Short Interest BPMC Short Interest ROIV Short Interest RVMD Short Interest VRNA Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:ACLX) was last updated on 6/13/2025 by MarketBeat.com Staff From Our PartnersYour Bank Account Is No Longer SafeWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what ...Priority Gold | SponsoredUtah’s New Oil FindThe Real Reason 218,000 Acres Just Vanished The government just quietly leased 218,000 acres in the middle ...Stansberry Research | SponsoredThe End of Elon Musk…?The End of Elon Musk? Don't make him laugh. 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