STAAR Surgical (STAA) Short Interest Ratio & Short Volume $26.32 -0.18 (-0.69%) As of 11:46 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock STAAR Surgical Short Interest DataSTAAR Surgical (STAA) has a short interest of 3.89 million shares. This marks a -2.51% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.5, indicating that it would take 2.5 days of the average trading volume of 1.17 million shares to cover all short positions.Current Short Interest3,890,000 sharesPrevious Short Interest3,990,000 sharesChange Vs. Previous Month-2.51%Dollar Volume Sold Short$107.64 millionShort Interest Ratio2.5 Days to CoverLast Record DateSeptember 15, 2025Outstanding Shares49,350,000 sharesPercentage of Shares Shorted7.88%Today's Trading Volume285,183 sharesAverage Trading Volume1,170,595 sharesToday's Volume Vs. Average24% Short Selling STAAR Surgical? Sign up to receive the latest short interest report for STAAR Surgical 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. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSTAA Short Interest Over TimeSTAA Days to Cover Over TimeSTAA Percentage of Float Shorted Over Time STAAR Surgical Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 9/15/20253,890,000 shares $107.64 million -2.5%N/A2.5 $27.67 8/31/20253,990,000 shares $109.17 million +3.6%8.1%2.6 $27.36 8/15/20253,850,000 shares $109.22 million -40.3%N/A2.5 $28.37 7/31/20256,450,000 shares $115.58 million +3.0%13.1%4.2 $17.92 7/15/20256,260,000 shares $105.54 million +2.6%N/A7.9 $16.86 6/30/20256,100,000 shares $102.36 million -6.9%12.4%7.2 $16.78 6/15/20256,550,000 shares $111.87 million +17.2%13.4%7.4 $17.08 5/31/20255,590,000 shares $99.84 million -0.4%11.5%5.9 $17.86 5/15/20255,610,000 shares $102.61 million -9.7%11.5%5.6 $18.29 4/30/20256,210,000 shares $113.39 million -0.2%N/A5.3 $18.26 Get the Latest News and Ratings for STAA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for STAAR Surgical and its competitors with MarketBeat's FREE daily newsletter. 4/15/20256,220,000 shares $102.75 million +19.4%12.8%5.5 $16.52 3/31/20255,210,000 shares $91.85 million +17.6%10.7%4.6 $17.63 3/15/20254,430,000 shares $75.53 million -3.1%9.1%4.3 $17.05 2/28/20254,570,000 shares $79.98 million +5.1%9.4%4.7 $17.50 2/15/20254,350,000 shares $66.77 million +10.4%8.9%5.2 $15.35 1/31/20253,940,000 shares $95.31 million +8.0%N/A6.4 $24.19 1/15/20253,650,000 shares $79.24 million +3.1%N/A5.8 $21.71 12/31/20243,540,000 shares $85.99 million +15.3%N/A5.6 $24.29 12/15/20243,070,000 shares $76.32 million +11.2%N/A4.5 $24.86 11/30/20242,760,000 shares $80.32 million -2.5%N/A3.8 $29.10 11/15/20242,830,000 shares $75.45 million -3.1%N/A3.9 $26.66 10/31/20242,920,000 shares $84.65 million -30.1%N/A3.9 $28.99 10/15/20244,180,000 shares $134.26 million -17.4%N/A5.1 $32.12 9/30/20245,060,000 shares $187.98 million +12.2%N/A6.1 $37.15 9/15/20244,510,000 shares $146.03 million +8.9%N/A5.6 $32.38 8/31/20244,140,000 shares $136.99 million +5.9%N/A5.5 $33.09 8/15/20243,910,000 shares $142.44 million -10.1%N/A5.5 $36.43 7/31/20244,350,000 shares $179.44 million +2.6%N/A6.5 $41.25 7/15/20244,240,000 shares $191.73 million +0.5%N/A7.5 $45.22 6/30/20244,220,000 shares $200.91 million +2.9%N/A7.2 $47.61 6/15/20244,100,000 shares $169.00 million -2.4%N/A6.9 $41.22 5/31/20244,200,000 shares $174.43 million -1.2%N/A7 $41.53 5/15/20244,250,000 shares $183.35 million -4.1%N/A6.3 $43.14 4/30/20244,430,000 shares $203.60 million -9.0%N/A6.4 $45.96 4/15/20244,870,000 shares $225.09 million -7.6%N/A6.8 $46.22 3/31/20245,270,000 shares $201.74 million -3.0%N/A6.7 $38.28 3/15/20245,430,000 shares $204.82 million -10.1%N/A7.5 $37.72 2/29/20246,040,000 shares $188.69 million -6.4%N/A7.9 $31.24 2/15/20246,450,000 shares $201.69 million -2.0%N/A8.2 $31.27 1/31/20246,580,000 shares $184.31 million +1.5%N/A8.2 $28.01 1/15/20246,480,000 shares $205.42 million +3.2%16.1%7.3 $31.70 12/31/20236,280,000 shares $196.00 million -7.8%N/A7.1 $31.21 12/15/20236,810,000 shares $227.52 million +1.8%N/A8.3 $33.41 11/30/20236,690,000 shares $209.80 million +9.9%N/A8.2 $31.36 11/15/20236,090,000 shares $219.54 million +6.3%N/A7.8 $36.05 10/31/20235,730,000 shares $239.63 million -9.1%N/A5.8 $41.82 10/15/20236,300,000 shares $254.58 million -4.8%N/A6.9 $40.41 9/30/20236,620,000 shares $265.99 million -6.0%N/A7.1 $40.18 9/15/20237,040,000 shares $305.25 million +5.7%N/A7.9 $43.36 8/31/20236,660,000 shares $288.78 million +9.9%N/A7.5 $43.36 8/15/20236,060,000 shares $257.49 million -5.0%N/A6.4 $42.49 7/31/20236,380,000 shares $349.43 million -4.4%N/A9.2 $54.77 7/15/20236,670,000 shares $375.59 million -4.6%N/A10 $56.31 6/30/20236,990,000 shares $367.46 million +6.6%N/A11 $52.57 6/15/20236,560,000 shares $345.52 million +4.1%N/A10.6 $52.67 5/31/20236,300,000 shares $365.53 million +2.1%N/A9.8 $58.02 5/15/20236,170,000 shares $387.17 million -3.6%N/A10 $62.75 4/30/20236,400,000 shares $451.01 million +4.6%N/A10.6 $70.47 4/15/20236,120,000 shares $406.80 million +4.4%N/A10.2 $66.47 3/31/20235,860,000 shares $374.75 million +15.1%N/A8.7 $63.95 3/15/20235,090,000 shares $311.71 million +6.9%N/A6.4 $61.24 2/28/20234,760,000 shares $263.66 million +14.2%N/A6 $55.39 2/15/20234,170,000 shares $299.20 million -2.6%N/A5.3 $71.75 1/31/20234,280,000 shares $301.95 million -9.7%N/A5.7 $70.55 1/15/20234,740,000 shares $343.65 million +14.2%N/A6.2 $72.50 12/30/20224,150,000 shares $201.44 million +33.0%N/A5.8 $48.54 12/15/20223,120,000 shares $176.28 million +22.4%N/A5.4 $56.50 11/30/20222,550,000 shares $145.63 million +7.6%N/A4.9 $57.11 11/15/20222,370,000 shares $157.13 million -22.8%N/A5.2 $66.30 10/31/20223,070,000 shares $217.57 million -16.1%N/A6.2 $70.87 10/15/20223,660,000 shares $252.43 million +2.2%N/A8.5 $68.97 9/30/20223,580,000 shares $252.57 million +18.2%N/A8.4 $70.55 9/15/20223,030,000 shares $276.21 million +5.9%N/A7.1 $91.16 8/31/20222,860,000 shares $270.53 million -6.8%N/A6.7 $94.59 8/15/20223,070,000 shares $322.07 million +4.4%N/A6.9 $104.91 7/31/20222,940,000 shares $237.26 million +0.3%N/A6.6 $80.70 7/15/20222,930,000 shares $224.56 million -7.3%N/A5.7 $76.64 6/30/20223,160,000 shares $224.14 million -5.1%N/A6 $70.93 6/15/20223,330,000 shares $214.72 million +21.5%N/A6 $64.48 5/31/20222,740,000 shares $180.68 million +5.0%N/A4.8 $65.94 5/15/20222,610,000 shares $151.85 million +0.8%N/A4.5 $58.18 4/30/20222,590,000 shares $147.86 million +0.4%N/A4.9 $57.09 4/15/20222,580,000 shares $159.68 million -0.4%N/A5.3 $61.89 3/31/20222,590,000 shares $206.97 million +12.6%N/A5.5 $79.91 3/15/20222,300,000 shares $136.87 million +8.5%N/A5.6 $59.51 2/28/20222,120,000 shares $168.16 million -1.9%N/A5.6 $79.32 2/15/20222,160,000 shares $163.21 million +5.4%N/A5.9 $75.56 1/31/20222,050,000 shares $149.08 million +5.7%N/A6.1 $72.72 1/15/20221,940,000 shares $146.33 million +14.8%N/A6 $75.43 12/31/20211,690,000 shares $154.30 million +4.3%N/A5.5 $91.30 12/15/20211,620,000 shares $150.00 million +5.2%N/A5.2 $92.59 11/30/20211,540,000 shares $146.59 million +4.8%N/A5 $95.19 11/15/20211,470,000 shares $164.71 million -5.2%N/A4.8 $112.05 10/29/20211,550,000 shares $183.61 million -0.6%N/A4.7 $118.46 10/15/20211,560,000 shares $179.23 million -7.7%N/A4.7 $114.89 9/30/20211,690,000 shares $217.22 million -6.1%N/A4.9 $128.53 9/15/20211,800,000 shares $255.94 million -8.6%N/A5 $142.19 8/31/20211,970,000 shares $304.31 million +8.2%N/A5.4 $154.47 8/13/20211,820,000 shares $253.42 million -3.7%N/A4.7 $139.24 7/30/20211,890,000 shares $241.77 million +6.2%N/A4.6 $127.92 7/15/20211,780,000 shares $229.42 million +9.2%3.8%4 $128.89 6/30/20211,630,000 shares $248.58 million -12.4%3.5%3.5 $152.50 6/15/20211,860,000 shares $274.37 million -6.5%4.0%3.8 $147.51 5/28/20211,990,000 shares $290.60 million -10.8%4.3%3.9 $146.03 5/14/20212,230,000 shares $236.98 million +0.9%N/A4.1 $106.27 4/30/20212,210,000 shares $307.54 million -4.7%N/A3.8 $139.16 4/15/20212,320,000 shares $271.49 million -8.3%N/A2.9 $117.02 3/31/20212,530,000 shares $253.99 million +29.1%N/A3.2 $100.39 3/15/20211,960,000 shares $177.14 million +7.1%N/A2.5 $90.38 2/26/20211,830,000 shares $194.51 million -30.4%N/A2.4 $106.29 2/12/20212,630,000 shares $325.30 million +39.9%N/A3.6 $123.69 1/29/20211,880,000 shares $200.58 million +3.3%N/A2.6 $106.69 1/15/20211,820,000 shares $165.60 million -20.5%N/A3.2 $90.99 12/31/20202,290,000 shares $181.46 million -3.8%N/A4.5 $79.24 12/15/20202,380,000 shares $181.19 million +1.7%N/A4.9 $76.13 11/30/20202,340,000 shares $171.01 million -3.3%N/A4.9 $73.08 11/15/20202,420,000 shares $193.82 million -4.0%N/A4.6 $80.09 10/30/20202,520,000 shares $187.31 million -4.6%N/A4.7 $74.33 10/15/20202,640,000 shares $155.36 million -10.8%N/A4.4 $58.85 STAA Short Interest - Frequently Asked Questions What is STAAR Surgical's current short interest? Short interest is the volume of STAAR Surgical shares that have been sold short but have not yet been closed out or covered. As of September 15th, investors have sold 3,890,000 shares of STAA short. Learn More on STAAR Surgical's current short interest. What is a good short interest ratio for STAAR Surgical? 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. STAA shares currently have a short interest ratio of 2.0. Learn More on STAAR Surgical's short interest ratio. Which institutional investors are shorting STAAR Surgical? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of STAAR Surgical: Group One Trading LLC, Walleye Capital LLC, and Walleye Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is STAAR Surgical's short interest increasing or decreasing? STAAR Surgical saw a decline in short interest during the month of September. As of September 15th, there was short interest totaling 3,890,000 shares, a decline of 2.5% from the previous total of 3,990,000 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. How does STAAR Surgical's short interest compare to its competitors? Here is how the short interest of companies in the sector of "medical" compare to STAAR Surgical: Merit Medical Systems, Inc. (5.44%), ICU Medical, Inc. (6.07%), DENTSPLY SIRONA Inc. (4.47%), Haemonetics Corporation (7.14%), QuidelOrtho Corporation (12.00%), Neogen Corporation (9.85%), Cerus Corporation (5.75%), OraSure Technologies, Inc. (5.59%), Utah Medical Products, Inc. (3.83%), Anika Therapeutics Inc. (2.62%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Corporation ($8.81 billion), Canadian Natural Resources Limited ($5.82 billion), Reddit Inc. ($5.19 billion), Coinbase Global, Inc. ($4.52 billion), Robinhood Markets, Inc. ($4.30 billion), Charter Communications, Inc. ($3.75 billion), CoreWeave Inc. ($3.66 billion), Seagate Technology Holdings PLC ($3.57 billion), Live Nation Entertainment, Inc. ($3.33 billion), and Rocket Lab Corporation ($3.26 billion). View all of the most shorted stocks. What does it mean to sell short STAAR Surgical stock? Short selling STAA is an investing strategy that aims to generate trading profit from STAAR Surgical as its price is falling. STAA shares are trading down $0.22 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 STAAR Surgical? A short squeeze for STAAR Surgical 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 STAA, which in turn drives the price of the stock up even further. How often is STAAR Surgical'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 STAA, twice per month. The most recent reporting period available is September, 15 2025. More Short Interest Resources from MarketBeat Related Companies Merit Medical Systems Short Squeeze ICU Medical Short Squeeze DENTSPLY SIRONA Short Squeeze Haemonetics Short Squeeze QuidelOrtho Short Squeeze Neogen Short Squeeze Cerus Short Squeeze OraSure Technologies Short Squeeze Utah Medical Products Short Squeeze Anika 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 (NASDAQ:STAA) was last updated on 10/9/2025 by MarketBeat.com Staff From Our PartnersBitcoin grabs headlines, but smart money likes this tokenBitcoin grabs headlines, but smart money likes this token My research team has identified the token positio...Crypto 101 Media | SponsoredBuilding The Infrastructure for the Coming Financial ResetWhile China pushes nearly $1 trillion through its new digital currency, one emerging company is quietly buildi...Intellistake | SponsoredMagnificent 7 being replaced by the “Hidden 7”?BULLISH: It's time to buy this 'hidden' AI stock An award-winning stock-rating system has turned BULLISH on...Chaikin Analytics | SponsoredCapital Gains Tax Strategies for SeniorsCapital gains taxes can take a bite out of your retirement income—unless you have a smart strategy. 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