Shoulder Innovations (SI) Short Interest Ratio & Short Volume $13.16 +0.08 (+0.61%) Closing price 10/7/2025 03:59 PM EasternExtended Trading$13.14 -0.02 (-0.11%) As of 10/7/2025 04:10 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 ForecastsChartCompetitorsHeadlinesInsider TradesSEC FilingsShort InterestTrendsBuy This Stock Shoulder Innovations Short Interest DataShoulder Innovations (SI) has a short interest of 555,500 shares, representing 4.79% of the float (the number of shares available for trading by the public). This marks a 3.00% increase 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 161,955 shares to cover all short positions.Current Short Interest555,500 sharesPrevious Short Interest539,300 sharesChange Vs. Previous Month+3.00%Dollar Volume Sold Short$8.32 millionShort Interest Ratio2.4 Days to CoverLast Record DateSeptember 15, 2025Outstanding Shares20,360,000 sharesFloat Size11,600,000 sharesShort Percent of Float4.79%Today's Trading Volume71,575 sharesAverage Trading Volume161,955 sharesToday's Volume Vs. Average44% Short Selling Shoulder Innovations? Sign up to receive the latest short interest report for Shoulder Innovations and its competitors with MarketBeat's FREE newsletter. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSI Short Interest Over TimeSI Days to Cover Over TimeSI Percentage of Float Shorted Over Time Shoulder Innovations Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 9/15/2025555,500 shares $8.32 million +3.0%4.8%2.4 $14.97 8/31/2025539,300 shares $8.05 million No Change4.0%2.3 $14.92 4/30/202312,400,000 shares $16.74 million -12.3%N/A0.8 $1.35 4/15/202314,140,000 shares $21.49 million -3.7%N/A0.8 $1.52 3/31/202314,680,000 shares $23.78 million -26.2%N/A0.8 $1.62 3/15/202319,890,000 shares $45.95 million -6.0%N/A1.2 $2.31 2/28/202321,150,000 shares $294.20 million +7.9%N/A1.7 $13.91 2/15/202319,610,000 shares $437.70 million -3.0%N/A2.2 $22.32 1/31/202320,220,000 shares $287.93 million +3.0%N/A2.5 $14.24 1/15/202319,630,000 shares $259.12 million +15.7%N/A3.2 $13.20 Get the Latest News and Ratings for SI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Shoulder Innovations and its competitors with MarketBeat's FREE daily newsletter. 12/30/202216,970,000 shares $295.28 million +12.3%N/A3.5 $17.40 12/15/202215,110,000 shares $286.18 million +36.0%N/A4.3 $18.94 11/30/202211,110,000 shares $304.75 million +97.0%N/A4 $27.43 11/15/20225,640,000 shares $165.59 million +76.8%N/A2.6 $29.36 10/31/20223,190,000 shares $181.06 million +1.6%N/A3.2 $56.76 10/15/20223,140,000 shares $210.91 million -3.1%N/A4 $67.17 9/30/20223,240,000 shares $244.13 million +0.9%N/A4.1 $75.35 9/15/20223,210,000 shares $268.97 million +5.9%N/A3.8 $83.79 8/31/20223,030,000 shares $276.09 million -7.9%N/A3.1 $91.12 8/15/20223,290,000 shares $349.17 million -8.9%N/A3.1 $106.13 7/31/20223,610,000 shares $336.78 million -17.2%N/A2.8 $93.29 7/15/20224,360,000 shares $268.40 million +6.1%N/A3.4 $61.56 6/30/20224,110,000 shares $220.01 million +5.7%N/A3.5 $53.53 6/15/20223,890,000 shares $250.52 million +9.9%N/A3.3 $64.40 5/31/20223,540,000 shares $277.89 million +30.2%N/A3.3 $78.50 5/15/20222,720,000 shares $206.37 million +8.4%N/A2.6 $75.87 4/30/20222,510,000 shares $293.57 million +31.4%N/A3 $116.96 4/15/20221,910,000 shares $225.72 million -12.4%N/A2.2 $118.18 3/31/20222,180,000 shares $328.24 million -5.2%N/A2.3 $150.57 3/15/20222,300,000 shares $276.32 million +4.1%N/A2.4 $120.14 2/28/20222,210,000 shares $283.06 million -2.6%N/A2 $128.08 2/15/20222,270,000 shares $293.99 million +13.5%N/A2 $129.51 1/31/20222,000,000 shares $215.48 million +32.5%N/A1.7 $107.74 1/15/20221,510,000 shares $208.61 million -3.2%N/A1.3 $138.15 12/31/20211,560,000 shares $231.19 million -4.9%N/A1.4 $148.20 12/15/20211,640,000 shares $241.00 million +0.6%N/A1.3 $146.95 11/30/20211,630,000 shares $333.30 million -20.1%N/A1.4 $204.48 11/15/20212,040,000 shares $424.32 million -8.1%N/A2.1 $208.00 10/29/20212,220,000 shares $347.70 million -10.1%N/A2.4 $156.62 10/15/20212,470,000 shares $393.94 million -19.5%N/A3 $159.49 9/30/20213,070,000 shares $354.59 million +25.8%N/A4.3 $115.50 9/15/20212,440,000 shares $264.86 million No ChangeN/A4.1 $108.55 8/31/20212,440,000 shares $275.67 million +5.2%N/A3.8 $112.98 8/13/20212,320,000 shares $259.14 million +16.0%N/A3.3 $111.70 7/30/20212,000,000 shares $205.60 million +14.3%N/A2 $102.80 7/15/20211,750,000 shares $160.69 million -16.7%7.2%1.6 $91.82 6/30/20212,100,000 shares $237.97 million +18.0%8.7%1.7 $113.32 6/15/20211,780,000 shares $183.61 million +7.9%7.4%1.3 $103.15 5/28/20211,650,000 shares $183.81 million +8.6%6.8%1.1 $111.40 5/14/20211,520,000 shares $139.72 million -14.6%6.3%0.9 $91.92 4/30/20211,780,000 shares $198.22 million +21.9%7.5%1.2 $111.36 4/15/20211,460,000 shares $206.33 million -8.8%6.4%0.9 $141.32 3/31/20211,600,000 shares $223.22 million +68.9%7.5%1.1 $139.51 3/15/2021947,100 shares $131.26 million +12.8%5.6%0.6 $138.59 2/26/2021839,800 shares $106.99 million -8.7%4.9%0.6 $127.40 2/12/2021919,800 shares $137.44 million -14.8%5.4%0.8 $149.42 1/29/20211,080,000 shares $91.55 million +0.9%6.5%1.1 $84.77 1/15/20211,070,000 shares $77.54 million +7.5%6.4%1.2 $72.47 12/31/2020995,800 shares $73.88 million +35.8%6.0%1.5 $74.19 12/15/2020733,400 shares $29.77 million +91.5%4.4%1.6 $40.59 11/30/2020382,900 shares $12.66 million +1.2%2.4%1.3 $33.07 11/15/2020378,200 shares $10.71 million -23.6%2.3%1.7 $28.32 10/30/2020495,300 shares $11.05 million +28.1%3.0%2.7 $22.30 10/15/2020386,800 shares $6.09 million -6.9%2.4%2.3 $15.75 SI Short Interest - Frequently Asked Questions What is Shoulder Innovations' current short interest? Short interest is the volume of Shoulder Innovations shares that have been sold short but have not yet been closed out or covered. As of September 15th, investors have sold 555,500 shares of SI short. 4.79% of Shoulder Innovations' shares are currently sold short. Learn More on Shoulder Innovations' current short interest. What is a good short interest ratio for Shoulder Innovations? 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. SI shares currently have a short interest ratio of 2.0. Learn More on Shoulder Innovations's short interest ratio. What is a good short interest percentage for Shoulder Innovations? 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. 4.79% of Shoulder Innovations' floating shares are currently sold short. Is Shoulder Innovations' short interest increasing or decreasing? Shoulder Innovations saw a increase in short interest in the month of September. As of September 15th, there was short interest totaling 555,500 shares, an increase of 3.0% from the previous total of 539,300 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 Shoulder Innovations' float size? Shoulder Innovations currently has issued a total of 20,360,000 shares. Some of Shoulder Innovations' 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. Shoulder Innovations currently has a public float of 11,600,000 shares. How does Shoulder Innovations' short interest compare to its competitors? 4.79% of Shoulder Innovations' shares are currently sold short. Here is how the short interest of companies compare to Shoulder Innovations: Coinbase Global, Inc. (6.66%), InMode Ltd. (5.55%), Tandem Diabetes Care, Inc. (11.74%), Beta Bionics, Inc. (11.85%), iRadimed Corporation (1.92%), Embecta Corp. (4.84%), AxoGen, Inc. (5.39%), ClearPoint Neuro, Inc. (8.34%), SiBone (4.89%), Avanos Medical, Inc. (7.13%), 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 Shoulder Innovations stock? Short selling SI is an investing strategy that aims to generate trading profit from Shoulder Innovations as its price is falling. SI shares are trading up $0.08 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 Shoulder Innovations? A short squeeze for Shoulder Innovations 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 SI, which in turn drives the price of the stock up even further. How often is Shoulder Innovations' 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 SI, twice per month. The most recent reporting period available is September, 15 2025. More Short Interest Resources from MarketBeat Related Companies COIN Short Interest Data INMD Short Interest Data TNDM Short Interest Data BBNX Short Interest Data IRMD Short Interest Data EMBC Short Interest Data AXGN Short Interest Data CLPT Short Interest Data SIBN Short Interest Data AVNS Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:SI) was last updated on 10/8/2025 by MarketBeat.com Staff From Our PartnersURGENT: The Market's 3 Red Flags Are FlashingHere’s the uncomfortable truth: The smartest investors in the world are already preparing for a crash befor...StockEarnings | SponsoredGet my No. 1 gold stock nowGold recently broke past $3,800 per ounce – setting yet another new all-time high. 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