GSK (GSK) Short Interest Ratio & Short Volume $39.68 +0.24 (+0.61%) Closing price 08/29/2025 03:59 PM EasternExtended Trading$39.60 -0.07 (-0.19%) As of 08/29/2025 07:24 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 ForecastsChartCompetitorsDividendEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock GSK Short Interest DataGSK (GSK) has a short interest of 12.53 million shares, representing 0.62% of the float (the number of shares available for trading by the public). This marks a -7.25% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.4, indicating that it would take 2.4 days of the average trading volume of 3.18 million shares to cover all short positions.Current Short Interest12,530,000 sharesPrevious Short Interest13,510,000 sharesChange Vs. Previous Month-7.25%Dollar Volume Sold Short$465.43 millionShort Interest Ratio2.4 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares2,036,775,000 sharesFloat Size2,020,000,000 sharesShort Percent of Float0.62%Today's Trading Volume3,590,956 sharesAverage Trading Volume3,181,567 sharesToday's Volume Vs. Average113% Short Selling GSK? Sign up to receive the latest short interest report for GSK and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartGSK Short Interest Over TimeGSK Days to Cover Over TimeGSK Percentage of Float Shorted Over Time GSK Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/202512,530,000 shares $465.43 million -7.3%0.6%2.4 $37.15 7/15/202513,510,000 shares $510.84 million -27.0%0.7%2.5 $37.81 6/30/202518,500,000 shares $710.03 million +12.3%0.9%3.5 $38.38 6/15/202516,480,000 shares $672.68 million -1.1%0.8%3 $40.82 5/31/202516,670,000 shares $683.97 million -0.5%0.8%3.1 $41.03 5/15/202516,760,000 shares $629.17 million -3.5%0.8%3 $37.54 4/30/202517,370,000 shares $691.85 million +6.0%0.9%3.1 $39.83 4/15/202516,390,000 shares $584.71 million +1.2%0.8%3 $35.68 3/31/202516,200,000 shares $628.75 million -7.3%0.8%3.1 $38.81 3/15/202517,470,000 shares $690.68 million -5.6%0.9%3.7 $39.54 Get the Latest News and Ratings for GSK and Related StocksEnter your email address below to receive the latest news and analysts' ratings for GSK and its competitors with MarketBeat's FREE daily newsletter. 2/28/202518,510,000 shares $695.75 million +31.7%0.9%3.9 $37.59 2/15/202514,050,000 shares $508.54 million -19.4%0.7%3.1 $36.20 1/31/202517,430,000 shares $613.61 million -2.6%0.9%3.3 $35.20 1/15/202517,890,000 shares $588.22 million +0.4%0.9%3.4 $32.88 12/31/202417,820,000 shares $602.67 million -3.2%0.9%3.2 $33.82 12/15/202418,410,000 shares $625.02 million -4.9%0.9%3.2 $33.95 11/30/202419,350,000 shares $660.42 million -17.7%1.0%3.4 $34.13 11/15/202423,520,000 shares $784.27 million +44.4%1.2%4.1 $33.35 10/31/202416,290,000 shares $598.49 million -1.6%0.8%3.3 $36.74 10/15/202416,550,000 shares $644.79 million +59.8%0.8%3.9 $38.96 9/30/202410,360,000 shares $423.52 million -11.4%0.5%2.7 $40.88 9/15/202411,690,000 shares $502.79 million +7.2%0.6%3.2 $43.01 8/31/202410,910,000 shares $479.06 million +13.1%0.5%3.2 $43.91 8/15/20249,650,000 shares $399.41 million -21.4%0.5%2.7 $41.39 7/31/202412,270,000 shares $475.89 million -11.3%0.6%3.3 $38.79 7/15/202413,840,000 shares $535.33 million +4.7%0.7%3.9 $38.68 6/30/202413,220,000 shares $508.97 million +57.4%0.7%3.6 $38.50 6/15/20248,400,000 shares $341.46 million +5.8%0.4%2.3 $40.65 5/31/20247,940,000 shares $355.47 million -25.0%0.4%2.4 $44.77 5/15/202410,590,000 shares $484.07 million +17.8%0.5%3.3 $45.71 4/30/20248,990,000 shares $372.46 million +22.3%0.4%2.7 $41.43 4/15/20247,350,000 shares $297.68 million +52.2%0.4%2.1 $40.50 3/31/20244,830,000 shares $207.06 million +21.7%0.2%1.4 $42.87 3/15/20243,970,000 shares $167.49 million -16.6%0.2%1.1 $42.19 2/29/20244,760,000 shares $199.40 million +3.0%0.2%1.3 $41.89 2/15/20244,620,000 shares $193.02 million +40.4%0.2%1.3 $41.78 1/31/20243,290,000 shares $129.74 million +18.4%0.2%1 $39.44 1/15/20242,780,000 shares $111.48 million +1.5%0.1%0.9 $40.10 12/31/20232,740,000 shares $101.54 million -6.2%0.1%0.9 $37.06 12/15/20232,920,000 shares $104.76 million +5.4%0.1%0.9 $35.88This stock could leave NVDA in the dust (Ad)Investing Legend Hints the End May be Near for These 3 Iconic Stocks Futurist Eric Fry say Amazon, Tesla and Nvidia are all on the verge of major disruption. To help protect anyone with money invested in them, he's sharing three exciting stocks to replace them with. He gives away the names and tickers completely free in his brand-new "Sell This, Buy That" broadcast.Click to get the full details on Eric Fry's "Nvidia alternative" right here. 11/30/20232,770,000 shares $99.71 million -25.9%0.1%0.8 $36.00 11/15/20233,740,000 shares $128.92 million -6.5%0.2%1 $34.47 10/31/20234,000,000 shares $142.80 million -17.4%0.2%1.1 $35.70 10/15/20234,840,000 shares $177.53 million -8.2%0.2%1.4 $36.68 9/30/20235,270,000 shares $191.04 million -5.4%0.3%1.6 $36.25 9/15/20235,570,000 shares $208.46 million +14.9%0.3%1.7 $37.43 8/31/20234,850,000 shares $170.48 million -7.8%0.2%1.4 $35.15 8/15/20235,260,000 shares $185.47 million +6.1%0.3%1.6 $35.26 7/31/20234,960,000 shares $176.43 million +1.6%0.2%1.6 $35.57 7/15/20234,880,000 shares $168.51 million +3.8%0.2%1.6 $34.53 6/30/20234,700,000 shares $167.51 million +22.4%0.2%1.5 $35.64 6/15/20233,840,000 shares $135.44 million +15.3%0.2%1.3 $35.27 5/31/20233,330,000 shares $111.89 million -10.5%0.2%1.2 $33.60 5/15/20233,720,000 shares $136.82 million -5.8%0.2%1.3 $36.78 4/30/20233,950,000 shares $142.32 million +16.2%0.2%1.2 $36.03 4/15/20233,400,000 shares $128.42 million +4.0%0.2%1 $37.77 3/31/20233,270,000 shares $116.35 million -14.8%0.2%0.9 $35.58 3/15/20233,840,000 shares $128.95 million +33.3%0.2%1 $33.58 2/28/20232,880,000 shares $98.70 million -23.0%0.1%0.6 $34.27 2/15/20233,740,000 shares $133.03 million -50.5%0.2%0.8 $35.57 1/31/20237,550,000 shares $266.21 million +0.7%0.4%1.5 $35.26 1/15/20237,500,000 shares $265.35 million -11.0%0.4%1.4 $35.38 12/30/20228,430,000 shares $296.23 million -22.8%0.4%1.5 $35.14 12/15/202210,920,000 shares $389.08 million -5.3%0.5%1.7 $35.63 11/30/202211,530,000 shares $398.82 million +2.5%0.6%1.7 $34.59 11/15/202211,250,000 shares $363.26 million -15.8%0.6%1.8 $32.29 10/31/202213,360,000 shares $443.15 million -15.8%0.7%1.8 $33.17 10/15/202215,870,000 shares $487.37 million +0.3%0.8%2.3 $30.71 9/30/202215,830,000 shares $465.88 million +13.3%0.8%2.3 $29.43 9/15/202213,970,000 shares $433.35 million +10.0%0.7%2.2 $31.02 8/31/202212,700,000 shares $412.50 million +49.1%0.6%2.1 $32.48 8/15/20228,520,000 shares $297.77 million +39.2%0.4%1.5 $34.95 7/31/20226,120,000 shares $258.08 million +9.9%0.3%1.3 $42.17 7/15/20225,570,000 shares $229.76 million -16.7%0.3%1.2 $41.25 6/30/20228,360,000 shares $363.91 million -6.0%N/A1.5 $43.53 6/15/20228,890,000 shares $372.94 million +74.7%N/A1.6 $41.95 5/31/20225,090,000 shares $223.45 million -15.5%0.2%0.9 $43.90 5/15/20226,020,000 shares $260.79 million -18.1%0.2%1.1 $43.32 4/30/20227,350,000 shares $332.81 million +10.4%0.3%1.5 $45.28 4/15/20226,660,000 shares $308.49 million +1.7%0.3%1.3 $46.32 3/31/20226,550,000 shares $285.32 million -12.4%0.3%1.3 $43.56 3/15/20227,480,000 shares $311.92 million +8.4%0.3%1.6 $41.70 2/28/20226,900,000 shares $288.83 million -15.7%0.3%1.5 $41.86 2/15/20228,180,000 shares $356.81 million +1.6%0.3%1.9 $43.62 1/31/20228,050,000 shares $360.80 million -15.5%0.3%2 $44.82 1/15/20229,530,000 shares $433.33 million -11.4%0.4%2.2 $45.47 12/31/202110,750,000 shares $474.08 million +3.3%0.5%2.6 $44.10 12/15/202110,410,000 shares $454.50 million -10.9%0.5%2.4 $43.66 11/30/202111,680,000 shares $480.28 million -5.3%0.5%2.7 $41.12 11/15/202112,330,000 shares $532.29 million -20.9%0.5%3 $43.17This stock could leave NVDA in the dust (Ad)Investing Legend Hints the End May be Near for These 3 Iconic Stocks Futurist Eric Fry say Amazon, Tesla and Nvidia are all on the verge of major disruption. To help protect anyone with money invested in them, he's sharing three exciting stocks to replace them with. He gives away the names and tickers completely free in his brand-new "Sell This, Buy That" broadcast.Click to get the full details on Eric Fry's "Nvidia alternative" right here. 10/29/202115,580,000 shares $659.50 million -7.1%0.6%3.9 $42.33 10/15/202116,770,000 shares $654.20 million -4.6%0.7%4.5 $39.01 9/30/202117,570,000 shares $671.35 million +7.6%0.7%4.8 $38.21 9/15/202116,330,000 shares $640.46 million -0.7%0.7%4.4 $39.22 8/31/202116,440,000 shares $669.77 million +2.8%0.7%4.2 $40.74 8/13/202115,990,000 shares $671.10 million +6.3%0.6%3.9 $41.97 7/30/202115,040,000 shares $603.71 million -1.6%0.6%3.5 $40.14 7/15/202115,290,000 shares $605.79 million +5.8%0.6%3.6 $39.62 6/30/202114,450,000 shares $575.40 million -22.4%0.6%3.2 $39.82 6/15/202118,630,000 shares $755.82 million -8.9%0.8%3.9 $40.57 5/28/202120,460,000 shares $793.23 million -13.3%0.8%4.4 $38.77 5/14/202123,600,000 shares $912.38 million -5.3%N/A4.6 $38.66 4/30/202124,920,000 shares $934.50 million -11.6%N/A4.4 $37.50 4/15/202128,200,000 shares $1.02 billion +1.9%N/A4.4 $36.13 3/31/202127,670,000 shares $1.01 billion +17.6%N/A4.6 $36.37 3/15/202123,520,000 shares $835.90 million +14.7%N/A4.1 $35.54 2/26/202120,500,000 shares $704.79 million +5.6%N/A3.6 $34.38 2/12/202119,410,000 shares $685.56 million +37.1%N/A3.6 $35.32 1/29/202114,160,000 shares $538.50 million +3.1%N/A2.7 $38.03 1/15/202113,730,000 shares $523.94 million +5.1%N/A2.8 $38.16 12/31/202013,060,000 shares $483.74 million +8.7%N/A2.6 $37.04 12/15/202012,010,000 shares $442.33 million +6.5%N/A2.5 $36.83 11/30/202011,280,000 shares $418.15 million -18.3%N/A2.4 $37.07 11/15/202013,800,000 shares $528.54 million +29.1%N/A3.1 $38.30 10/30/202010,690,000 shares $363.03 million -5.7%N/A2.8 $33.96 10/15/202011,340,000 shares $421.96 million +2.4%N/A3.4 $37.21 9/30/202011,080,000 shares $417.05 million -2.7%N/A3.6 $37.64 9/15/202011,390,000 shares $447.29 million +14.1%N/A4 $39.27 8/31/20209,980,000 shares $395.21 million +1.6%N/A3.4 $39.60 GSK Short Interest - Frequently Asked Questions What is GSK's current short interest? Short interest is the volume of GSK shares that have been sold short but have not yet been covered or closed out. As of July 31st, investors have sold 12,530,000 shares of GSK short. 0.62% of GSK's shares are currently sold short. Learn More on GSK's current short interest. What is a good short interest ratio for GSK? 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. GSK shares currently have a short interest ratio of 2.0. Learn More on GSK's short interest ratio. Which institutional investors are shorting GSK? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of GSK: Squarepoint Ops LLC, LMR Partners LLP, Group One Trading LLC, Jane Street Group LLC, Squarepoint Ops LLC, Qube Research & Technologies Ltd, Walleye Capital LLC, Walleye Trading LLC, Capital Fund Management S.A., Simplex Trading LLC, and Twin Tree Management LP. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for GSK? 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. 0.62% of GSK's floating shares are currently sold short. Is GSK's short interest increasing or decreasing? GSK saw a drop in short interest in the month of July. As of July 31st, there was short interest totaling 12,530,000 shares, a drop of 7.3% from the previous total of 13,510,000 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 GSK's float size? GSK currently has issued a total of 2,036,775,000 shares. Some of GSK'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. GSK currently has a public float of 2,020,000,000 shares. How does GSK's short interest compare to its competitors? 0.62% of GSK's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to GSK: Novartis AG (0.23%), Novo Nordisk A/S (0.47%), AstraZeneca PLC (0.17%), Sanofi (0.13%), Takeda Pharmaceutical Co. (0.26%), argenex SE (3.15%), Insmed, Inc. (4.65%), BioNTech SE Sponsored ADR (2.56%), Teva Pharmaceutical Industries Ltd. (4.37%), Summit Therapeutics PLC (27.63%), 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 ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), Strategy Inc ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks. What does it mean to sell short GSK stock? Short selling GSK is an investing strategy that aims to generate trading profit from GSK as its price is falling. GSK shares are trading up $0.24 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 GSK? A short squeeze for GSK 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 GSK, which in turn drives the price of the stock up even further. How often is GSK'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 GSK, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Novartis Short Squeeze Novo Nordisk A/S Short Squeeze AstraZeneca Short Squeeze Sanofi Short Squeeze Takeda Pharmaceutical Short Squeeze argenex Short Squeeze Insmed Short Squeeze BioNTech Short Squeeze Teva Pharmaceutical Industries Short Squeeze Summit Therapeutics Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:GSK) was last updated on 8/31/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. 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