AstraZeneca (AZNCF) Short Interest Ratio & Short Volume $147.50 +0.11 (+0.07%) As of 08/1/2025 03:42 PM Eastern Add Compare Share Share Short Interest Stock AnalysisChartDividendFDA EventsFinancialsHeadlinesOwnershipSEC FilingsShort InterestBuy This Stock AstraZeneca Short Interest DataAstraZeneca (AZNCF) has a short interest of 284,000 shares. This marks a 10.94% increase in short interest from the previous month. The short interest ratio (days to cover) is 135.2, indicating that it would take 135.2 days of the average trading volume of 2,345 shares to cover all short positions.Current Short Interest284,000 sharesPrevious Short Interest256,000 sharesChange Vs. Previous Month+10.94%Dollar Volume Sold Short$39.87 millionShort Interest Ratio135.2 Days to CoverLast Record DateJuly 15, 2025Today's Trading Volume34,722 sharesAverage Trading Volume2,345 sharesToday's Volume Vs. Average1,481% Short Selling AstraZeneca? 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Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartAZNCF Short Interest Over TimeAZNCF Days to Cover Over TimeAZNCF Percentage of Float Shorted Over Time AstraZeneca Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/15/2025284,000 shares $39.87 million +10.9%N/A135.2 $140.40 6/30/2025256,000 shares $35.37 million +36.0%N/A94.8 $138.18 6/15/2025188,300 shares $27.88 million -1.2%N/A17.6 $148.04 5/31/2025190,500 shares $27.28 million +46.9%N/A50.1 $143.20 5/15/2025129,700 shares $17.62 million -37.1%N/A40.5 $135.88 4/30/2025206,100 shares $30.02 million -8.5%N/A66.5 $145.64 4/15/2025225,300 shares $30.24 million +14.3%N/A53.6 $134.22 3/31/2025197,200 shares $29.06 million -38.5%N/A89.6 $147.36 3/15/2025320,500 shares $49.22 million -28.2%N/A100.2 $153.56 2/28/2025446,500 shares $67.18 million +38.4%N/A99.2 $150.46 Get the Latest News and Ratings for AZNCF and Related StocksEnter your email address below to receive the latest news and analysts' ratings for AstraZeneca and its competitors with MarketBeat's FREE daily newsletter. 2/15/2025322,700 shares $47.99 million +23.1%N/A100.8 $148.71 1/31/2025262,200 shares $36.90 million +7.2%N/A46 $140.72 1/15/2025244,700 shares $31.75 million +92.1%N/A41.5 $129.76 12/31/2024127,400 shares $16.56 million +116.7%N/A15 $130.00 12/15/202458,800 shares $7.75 million -69.5%N/A9.3 $131.74 11/30/2024192,900 shares $26.33 million +31.1%N/A40.2 $136.50 11/15/2024147,200 shares $18.84 million +248.8%N/A38.7 $127.96 10/31/202442,200 shares $5.99 million +13.8%N/A16.9 $141.90 10/15/202437,100 shares $5.70 million -10.0%N/A17.7 $153.70 9/30/202441,200 shares $6.36 million -2.1%N/A16.5 $154.46 9/15/202442,100 shares $6.66 million +352.7%N/A15 $158.14 8/31/20249,300 shares $1.63 million +1.1%N/A2.7 $175.00 8/15/20249,200 shares $1.54 million -20.7%N/A4.4 $167.00 7/31/202411,600 shares $1.81 million -78.2%N/A2.9 $156.35 7/15/202453,100 shares $8.29 million +140.3%N/A25.3 $156.14 6/30/202422,100 shares $3.45 million +81.2%N/A12.3 $156.27 6/15/202412,200 shares $1.96 million -41.9%N/A3.4 $160.42 5/31/202421,000 shares $3.23 million -74.5%N/A8.8 $153.78 5/15/202482,300 shares $12.59 million -9.2%N/A13.7 $153.00 4/30/202490,600 shares $13.68 million -48.2%N/A5.8 $151.00 4/15/2024174,800 shares $23.76 million +157.8%N/A79.5 $135.94 3/31/202467,800 shares $9.29 million +15.9%N/A20.5 $136.96 3/15/202458,500 shares $7.85 million +24.5%N/A18.9 $134.13 2/29/202447,000 shares $5.95 million +100.9%N/A9.2 $126.63 2/15/202423,400 shares $2.90 million -90.3%N/A1.3 $124.00 1/15/2024232,600 shares $32.51 million +16.9%N/A46.5 $139.76 12/31/2023199,000 shares $26.76 million -44.0%N/A36.3 $134.45 12/15/2023355,200 shares $46.63 million +142.3%N/A65.8 $131.28 11/30/2023146,600 shares $18.84 million +0.2%N/A11.6 $128.50 11/15/2023146,300 shares $18.31 million -7.7%N/A28.1 $125.16China just unlocked Nvidia’s AI chips—what that means for you (Ad)Tired of Missing Big AI Moves Like Nvidia? 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Results proven.Watch the system in action. 10/31/2023158,500 shares $19.46 million -30.5%N/A35.2 $122.76 10/15/2023228,000 shares $30.89 million +10.7%N/A50.7 $135.50 9/30/2023205,900 shares $27.81 million +95.7%N/A51.5 $135.05 9/15/2023105,200 shares $14.55 million +5.9%N/A15 $138.28 8/31/202399,300 shares $13.31 million +10.7%N/A22.8 $134.04 8/15/202389,700 shares $12.34 million -59.7%N/A24.9 $137.56 7/31/2023222,400 shares $32.69 million -51.7%N/A105.9 $147.00 7/15/2023460,100 shares $63.78 million +213.6%N/A184 $138.62 6/30/2023146,700 shares $21.11 million -67.5%N/A66.7 $143.90 6/15/2023451,000 shares $67.31 million +15.1%N/A83.5 $149.25 5/31/2023392,000 shares $57.26 million +314.4%N/A22.5 $146.08 5/15/202394,600 shares $14.14 million -81.2%N/A23.7 $149.45 4/30/2023502,800 shares $73.69 million -9.5%N/A23.4 $146.55 4/15/2023555,700 shares $81.18 million +137.0%N/A86.8 $146.08 3/31/2023234,500 shares $32.87 million +82.8%N/A71.1 $140.16 3/15/2023128,300 shares $16.40 million -71.6%N/A18.9 $127.84 2/28/2023452,200 shares $58.43 million +333.1%N/A145.9 $129.22 2/15/2023104,400 shares $14.70 million -75.7%N/A32.6 $140.78 AZNCF Short Interest - Frequently Asked Questions What is AstraZeneca's current short interest? Short interest is the volume of AstraZeneca shares that have been sold short but have not yet been covered or closed out. As of July 15th, investors have sold 284,000 shares of AZNCF short. Learn More on AstraZeneca's current short interest. What is a good short interest ratio for AstraZeneca? 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. AZNCF shares currently have a short interest ratio of 135.0. Learn More on AstraZeneca's short interest ratio. Is AstraZeneca's short interest increasing or decreasing? AstraZeneca saw a increase in short interest in the month of July. As of July 15th, there was short interest totaling 284,000 shares, an increase of 10.9% from the previous total of 256,000 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. Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Coinbase Global, Inc. ($5.11 billion), Charter Communications, Inc. ($4.76 billion), Reddit Inc. ($2.84 billion), SoFi Technologies, Inc. ($2.79 billion), Seagate Technology Holdings PLC ($2.79 billion), Live Nation Entertainment, Inc. ($2.67 billion), Rocket Lab Corporation ($2.49 billion), AST SpaceMobile, Inc. ($2.12 billion), Moderna, Inc. ($2.09 billion), and Omnicom Group Inc. ($2.04 billion). View all of the most shorted stocks. What does it mean to sell short AstraZeneca stock? Short selling AZNCF is an investing strategy that aims to generate trading profit from AstraZeneca as its price is falling. AZNCF shares are trading up $0.11 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 AstraZeneca? A short squeeze for AstraZeneca 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 AZNCF, which in turn drives the price of the stock up even further. How often is AstraZeneca'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 AZNCF, twice per month. The most recent reporting period available is July, 15 2025. 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