KLA (KLAC) Short Interest Ratio & Short Volume $767.51 -11.43 (-1.47%) Closing price 04:00 PM EasternExtended Trading$768.00 +0.50 (+0.06%) As of 07:41 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 ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock KLA Short Interest DataKLA (KLAC) has a short interest of 2.46 million shares, representing 1.86% of the float (the number of shares available for trading by the public). This marks a -18.81% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.1, indicating that it would take 2.1 days of the average trading volume of 1.08 million shares to cover all short positions.Current Short Interest2,460,000 sharesPrevious Short Interest3,030,000 sharesChange Vs. Previous Month-18.81%Dollar Volume Sold Short$1.73 billionShort Interest Ratio2.1 Days to CoverLast Record DateApril 30, 2025Outstanding Shares132,241,000 sharesFloat Size132,020,000 sharesShort Percent of Float1.86%Today's Trading Volume681,865 sharesAverage Trading Volume1,084,006 sharesToday's Volume Vs. Average63% Short Selling KLA? Sign up to receive the latest short interest report for KLA and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartKLAC Short Interest Over TimeKLAC Days to Cover Over TimeKLAC Percentage of Float Shorted Over Time KLA Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/20252,460,000 shares $1.73 billion -18.8%1.9%2.1 $702.69 4/15/20253,030,000 shares $2.05 billion +7.1%2.3%2.5 $676.21 3/31/20252,830,000 shares $1.92 billion -16.8%2.1%2.3 $679.80 3/15/20253,400,000 shares $2.42 billion +1.5%2.6%3.1 $713.00 2/28/20253,350,000 shares $2.37 billion +17.1%2.5%3 $708.84 2/15/20252,860,000 shares $2.15 billion +7.5%2.2%2.6 $750.74 1/31/20252,660,000 shares $1.96 billion -15.0%2.0%2.3 $738.24 1/15/20253,130,000 shares $2.24 billion -3.4%2.3%2.6 $716.25 12/31/20243,240,000 shares $2.04 billion No Change2.4%2.8 $630.12 12/15/20243,240,000 shares $2.12 billion +8.4%2.4%2.8 $653.76 Get the Latest News and Ratings for KLAC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for KLA and its competitors with MarketBeat's FREE daily newsletter. 11/30/20242,990,000 shares $1.93 billion +6.4%2.3%2.7 $647.03 11/15/20242,810,000 shares $1.73 billion +21.7%2.1%2.6 $614.46 10/31/20242,310,000 shares $1.54 billion -8.7%1.7%2.3 $666.23 10/15/20242,530,000 shares $1.79 billion +3.7%1.9%2.5 $707.72 9/30/20242,440,000 shares $1.89 billion -0.4%1.8%2.5 $774.41 9/15/20242,450,000 shares $1.84 billion -9.3%1.8%2.5 $751.50 8/31/20242,700,000 shares $2.21 billion +20.0%2.0%2.8 $819.43 8/15/20242,250,000 shares $1.88 billion +11.9%1.7%2.4 $836.19 7/31/20242,010,000 shares $1.65 billion -21.2%1.5%2.2 $823.07 7/15/20242,550,000 shares $2.19 billion -6.3%1.9%3.1 $858.12 6/30/20242,720,000 shares $2.24 billion -7.5%2.0%3.4 $824.51 6/15/20242,940,000 shares $2.43 billion -1.0%2.2%3.5 $824.84 5/31/20242,970,000 shares $2.26 billion +24.3%2.2%3.5 $759.53 5/15/20242,390,000 shares $1.82 billion +4.4%1.8%2.8 $759.72 4/30/20242,290,000 shares $1.58 billion +19.9%1.7%2.5 $689.29 4/15/20241,910,000 shares $1.30 billion -3.5%1.4%2 $678.49 3/31/20241,980,000 shares $1.38 billion -1.0%1.5%2 $698.57 3/15/20242,000,000 shares $1.37 billion -2.9%1.5%2.1 $683.90 2/29/20242,060,000 shares $1.41 billion +17.7%1.5%2.1 $682.30 2/15/20241,750,000 shares $1.14 billion +23.2%1.3%1.8 $652.38 1/31/20241,420,000 shares $843.54 million -28.3%1.1%1.5 $594.04 1/15/20241,980,000 shares $1.11 billion -10.0%1.5%2.1 $560.61 12/31/20232,200,000 shares $1.28 billion -16.0%1.6%2.4 $581.30 12/15/20232,620,000 shares $1.53 billion +1.6%1.9%2.8 $585.13 11/30/20232,580,000 shares $1.41 billion +9.3%1.9%2.7 $544.62 11/15/20232,360,000 shares $1.29 billion +7.8%1.7%2.5 $545.40 10/31/20232,190,000 shares $1.03 billion -13.8%1.6%2.4 $469.70 10/15/20232,540,000 shares $1.24 billion +14.9%1.9%2.7 $486.81 9/30/20232,210,000 shares $1.01 billion +11.6%1.6%2.3 $458.66 9/15/20231,980,000 shares $899.36 million -11.6%1.5%2 $454.22The DOJ Just Said Your Money Isn’t Yours (Ad)What If Washington Declared That: YOUR Money ISN'T Actually Yours? 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It means Washington thinks they can seize, freeze, or drain your accounts—whenever they want.Get your free guide now by clicking here >> 8/31/20232,240,000 shares $1.12 billion +18.5%1.6%2.3 $501.87 8/15/20231,890,000 shares $913.87 million -15.3%1.4%1.8 $483.53 7/31/20232,230,000 shares $1.15 billion -3.0%1.6%2.1 $513.95 7/15/20232,300,000 shares $1.09 billion +4.6%1.7%2.2 $474.79 6/30/20232,200,000 shares $1.07 billion -5.6%1.6%2.2 $485.02 6/15/20232,330,000 shares $1.10 billion -8.3%1.7%2.2 $472.58 5/31/20232,540,000 shares $1.13 billion +14.4%1.9%2.3 $442.99 5/15/20232,220,000 shares $897.10 million +16.2%1.6%2.2 $404.10 4/30/20231,910,000 shares $738.29 million -5.9%1.4%1.8 $386.54 4/15/20232,030,000 shares $761.33 million -8.1%1.5%1.8 $375.04 3/31/20232,210,000 shares $882.17 million -5.6%1.6%1.9 $399.17 3/15/20232,340,000 shares $866.53 million -2.9%1.7%2 $370.31 2/28/20232,410,000 shares $914.31 million +21.7%1.8%2 $379.38 2/15/20231,980,000 shares $800.83 million +1.5%1.4%1.6 $404.46 1/31/20231,950,000 shares $765.34 million -35.9%1.4%1.4 $392.48 1/15/20233,040,000 shares $1.28 billion -23.0%2.2%2.1 $420.04 12/30/20223,950,000 shares $1.49 billion -14.9%2.8%2.4 $377.03 12/15/20224,640,000 shares $1.79 billion +51.1%3.3%2.7 $384.75 11/30/20223,070,000 shares $1.21 billion -12.8%2.2%1.7 $393.15 11/15/20223,520,000 shares $1.36 billion +28.9%2.5%1.9 $385.55 10/31/20222,730,000 shares $863.91 million -3.5%1.9%1.5 $316.45 10/15/20222,830,000 shares $746.27 million -2.8%2.0%1.7 $263.70 9/30/20222,910,000 shares $880.65 million -42.9%2.1%1.9 $302.63 9/15/20225,100,000 shares $1.72 billion -7.4%3.6%3.3 $337.36 8/31/20225,510,000 shares $1.90 billion -12.5%3.9%3.7 $344.13 8/15/20226,300,000 shares $2.42 billion -15.9%4.5%4.5 $384.32 7/31/20227,490,000 shares $2.87 billion -3.5%5.0%5.2 $383.54 7/15/20227,760,000 shares $2.53 billion -8.2%5.2%5.4 $326.23 6/30/20228,450,000 shares $2.70 billion +272.3%N/A5.9 $319.08 6/15/20222,270,000 shares $735.00 million +15.2%N/A1.6 $323.79 5/31/20221,970,000 shares $718.75 million +2.1%1.3%1.5 $364.85 5/15/20221,930,000 shares $649.29 million +12.9%1.3%1.3 $336.42 4/30/20221,710,000 shares $545.93 million +6.9%1.2%1.2 $319.26 4/15/20221,600,000 shares $514.37 million -6.4%1.1%1.1 $321.48 3/31/20221,710,000 shares $625.96 million +15.5%1.1%1.1 $366.06 3/15/20221,480,000 shares $493.17 million -10.3%1.0%1 $333.22 2/28/20221,650,000 shares $575.03 million -27.0%1.1%1.1 $348.50 2/15/20222,260,000 shares $875.75 million +14.7%1.5%1.5 $387.50 1/31/20221,970,000 shares $766.86 million -0.5%1.3%1.4 $389.27 1/15/20221,980,000 shares $881.10 million +0.5%1.3%1.5 $445.00 12/31/20211,970,000 shares $847.32 million -28.6%1.3%1.6 $430.11 12/15/20212,760,000 shares $1.13 billion -1.1%1.8%2.3 $409.91 11/30/20212,790,000 shares $1.14 billion -6.1%1.8%2.4 $408.13 11/15/20212,970,000 shares $1.23 billion -0.7%2.0%2.8 $413.06 10/29/20212,990,000 shares $1.11 billion +18.2%2.0%2.8 $372.76 10/15/20212,530,000 shares $832.62 million -4.5%1.7%2.5 $329.10 9/30/20212,650,000 shares $886.45 million -8.6%1.8%2.7 $334.51 9/15/20212,900,000 shares $1.07 billion +5.8%1.9%2.8 $367.34 8/31/20212,740,000 shares $931.49 million +26.3%1.8%2.8 $339.96 8/13/20212,170,000 shares $711.50 million -18.4%1.4%2.1 $327.88Man who predicted $100K Bitcoin sees a huge run coming for another coin … (Ad)Sure enough, Bitcoin took off on the exact day Juan said it would. It's up more than 40% since the election … surpassing $100,000 on Dec. 8 .… Now Juan believes it could hit $150,000 … or higher in 2025.There's another coin he thinks could do even better. 7/30/20212,660,000 shares $926.11 million +26.1%1.8%2.4 $348.16 7/15/20212,110,000 shares $640.91 million +3.4%1.4%1.9 $303.75 6/30/20212,040,000 shares $661.39 million -20.3%1.3%1.8 $324.21 6/15/20212,560,000 shares $820.71 million -5.9%1.7%2.2 $320.59 5/28/20212,720,000 shares $861.94 million +19.8%1.8%2.1 $316.89 5/14/20212,270,000 shares $673.65 million +7.1%1.5%1.6 $296.76 4/30/20212,120,000 shares $691.88 million -15.2%1.4%1.5 $326.36 4/15/20212,500,000 shares $841.25 million -6.0%1.6%1.8 $336.50 3/31/20212,660,000 shares $843.41 million -12.8%1.7%1.9 $317.07 3/15/20213,050,000 shares $897.52 million +13.4%2.0%2.3 $294.27 2/26/20212,690,000 shares $819.89 million +43.1%1.8%2.3 $304.79 2/12/20211,880,000 shares $610.02 million -7.8%1.2%1.8 $324.48 1/29/20212,040,000 shares $593.84 million -18.4%1.3%2.1 $291.10 1/15/20212,500,000 shares $759.70 million -4.6%1.6%2.5 $303.88 12/31/20202,620,000 shares $681.59 million -5.8%1.7%2.8 $260.15 12/15/20202,780,000 shares $723.16 million -2.1%1.8%2.9 $260.13 11/30/20202,840,000 shares $721.73 million -16.2%1.8%2.7 $254.13 11/15/20203,390,000 shares $800.38 million +18.5%2.2%3 $236.10 10/30/20202,860,000 shares $577.58 million +1.1%1.9%2.5 $201.95 10/15/20202,830,000 shares $611.28 million -6.0%1.8%2.4 $216.00 9/30/20203,010,000 shares $583.16 million +19.4%1.9%2.4 $193.74 9/15/20202,520,000 shares $455.52 million -22.2%1.6%2 $180.76 8/31/20203,240,000 shares $664.65 million +8.7%2.1%2.5 $205.14 8/14/20202,980,000 shares $630.30 million +1.0%1.9%2.4 $211.51 7/31/20202,950,000 shares $589.50 million -12.5%1.9%2.2 $199.83 7/15/20203,370,000 shares $677.13 million -0.9%2.2%2.4 $200.93 6/30/20203,400,000 shares $651.88 million -2.9%2.2%2.5 $191.73 6/15/20203,500,000 shares $646.42 million -5.2%2.3%2.3 $184.69 5/29/20203,690,000 shares $649.29 million -3.4%2.4%2.2 $175.96 KLAC Short Interest - Frequently Asked Questions What is KLA's current short interest? Short interest is the volume of KLA shares that have been sold short but have not yet been closed out or covered. As of April 30th, investors have sold 2,460,000 shares of KLAC short. 1.86% of KLA's shares are currently sold short. Learn More on KLA's current short interest. What is a good short interest ratio for KLA? 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. KLAC shares currently have a short interest ratio of 2.0. Learn More on KLA's short interest ratio. Which institutional investors are shorting KLA? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of KLA: Jane Street Group LLC, Goldman Sachs Group Inc., Parallax Volatility Advisers L.P., Millennium Management LLC, Cubist Systematic Strategies LLC, Nomura Holdings Inc., Susquehanna International Group LLP, BNP Paribas Financial Markets, Eisler Capital Management Ltd., PEAK6 LLC, Jane Street Group LLC, Walleye Trading LLC, Walleye Capital LLC, ADAPT Investment Managers SA, Garda Capital Partners LP, Hsbc Holdings PLC, Maven Securities LTD, Simplex Trading LLC, Bank of Nova Scotia, Baader Bank Aktiengesellschaft, Readystate Asset Management LP, Allianz Asset Management GmbH, Covenant Asset Management LLC, Fulcrum Asset Management LLP, and CenterStar Asset Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for KLA? 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. 1.86% of KLA's floating shares are currently sold short. Is KLA's short interest increasing or decreasing? KLA saw a decrease in short interest during the month of April. As of April 30th, there was short interest totaling 2,460,000 shares, a decrease of 18.8% from the previous total of 3,030,000 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 KLA's float size? KLA currently has issued a total of 132,241,000 shares. Some of KLA'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. KLA currently has a public float of 132,020,000 shares. How does KLA's short interest compare to its competitors? 1.86% of KLA's shares are currently sold short. Here is how the short interest of companies compare to KLA: Applied Materials, Inc. (2.04%), Lam Research Co. (1.83%), Entegris, Inc. (8.69%), MKS Instruments, Inc. (6.14%), Amkor Technology, Inc. (6.86%), Onto Innovation Inc. (4.00%), Advanced Energy Industries, Inc. (6.73%), FormFactor, Inc. (4.41%), Axcelis Technologies, Inc. (17.75%), Photronics, Inc. (5.25%), 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 KLA stock? Short selling KLAC is an investing strategy that aims to generate trading profit from KLA as its price is falling. KLAC shares are trading down $11.43 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 KLA? A short squeeze for KLA 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 KLAC, which in turn drives the price of the stock up even further. How often is KLA'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 KLAC, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies AMAT Short Interest LRCX Short Interest ENTG Short Interest MKSI Short Interest AMKR Short Interest ONTO Short Interest AEIS Short Interest FORM Short Interest ACLS Short Interest PLAB 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:KLAC) was last updated on 5/22/2025 by MarketBeat.com Staff From Our PartnersEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredTrump’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 | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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One altcoin is quietly po...Crypto 101 Media | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding KLA Co. Please log in to your account or sign up in order to add this asset to your watchlist. Share KLA With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. 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