This company has been marked as potentially delisted and may not be actively trading. Sientra (SIEN) Short Interest Ratio & Short Volume Add Compare Share Share Short Interest Stock AnalysisBuy This Stock Sientra Short Interest DataSientra (SIEN) has a short interest of 1.31 million shares, representing 12.11% of the float (the number of shares available for trading by the public). This marks a 0.77% increase in short interest from the previous month. The short interest ratio (days to cover) is 10.7, indicating that it would take 10.7 days of the average trading volume of 4.15 million shares to cover all short positions.Current Short Interest1,310,000 sharesPrevious Short Interest1,300,000 sharesChange Vs. Previous Month+0.77%Dollar Volume Sold Short$888,180.00Short Interest Ratio10.7 Days to CoverLast Record DateJanuary 31, 2024Outstanding Shares11,960,000 sharesFloat Size10,820,000 sharesShort Percent of Float12.11%Today's Trading Volume3,435,100 sharesAverage Trading Volume4,151,154 sharesToday's Volume Vs. Average83% Short Selling Sientra? Sign up to receive the latest short interest report for Sientra and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSIEN Short Interest Over TimeSIEN Days to Cover Over TimeSIEN Percentage of Float Shorted Over Time Sientra Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 1/31/20241,310,000 shares $888,180.00 +0.8%12.1%10.7 $0.68 1/15/20241,300,000 shares $767,000.00 -4.4%12.0%7.4 $0.59 12/31/20231,360,000 shares $829,600.00 +1.5%12.6%7.6 $0.61 12/15/20231,340,000 shares $830,934.00 -6.9%12.4%7.7 $0.62 11/30/20231,440,000 shares $1.18 million -13.3%13.4%8.2 $0.82 11/15/20231,660,000 shares $1.45 million +1.2%15.4%9.9 $0.87 10/31/20231,640,000 shares $1.05 million -6.3%16.3%10.6 $0.64 10/15/20231,750,000 shares $3.41 million -3.3%17.3%13.6 $1.95 9/30/20231,810,000 shares $5.03 million +2.8%17.9%9.6 $2.78 9/15/20231,760,000 shares $3.78 million -1.1%17.4%5.5 $2.15 Get the Latest News and Ratings for SIEN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Sientra and its competitors with MarketBeat's FREE daily newsletter. 8/31/20231,780,000 shares $4.40 million -3.8%17.6%1.6 $2.47 8/15/20231,850,000 shares $5.53 million +8.2%18.3%1.6 $2.99 7/31/20231,710,000 shares $6.45 million -7.1%17.8%1.4 $3.77 7/15/20231,840,000 shares $6.88 million +0.6%19.1%1.6 $3.74 6/30/20231,830,000 shares $5.36 million -15.3%19.0%1.6 $2.93 6/15/20232,160,000 shares $3.82 million +38.5%22.4%2.1 $1.77 5/31/20231,560,000 shares $2.59 million +1.3%15.8%1.8 $1.66 5/15/20231,540,000 shares $2.96 million -1.3%15.6%8.9 $1.92 4/30/20231,560,000 shares $2.18 million -7.7%18.0%15.5 $1.40 4/15/20231,690,000 shares $2.69 million +1.2%19.1%9.7 $1.59 3/31/20231,670,000 shares $2.57 million +0.6%20.5%11.4 $1.54 3/15/20231,660,000 shares $2.36 million +10.7%18.3%11.5 $1.42 2/28/20231,500,000 shares $2.33 million -2.6%16.6%9.9 $1.55 2/15/20231,540,000 shares $2.70 million +14.1%17.0%10.3 $1.75 1/31/20231,350,000 shares $2.86 million +16.4%15.7%7 $2.12 1/15/20231,160,000 shares $2.77 million -90.3%N/A5.2 $2.39 12/30/202211,970,000 shares $2.43 million +4.6%N/A5.5 $0.20 12/15/202211,440,000 shares $3.08 million +1.7%N/A5.1 $0.27 11/30/202211,250,000 shares $3.15 million -4.4%N/A5.3 $0.28 11/15/202211,770,000 shares $3.86 million +9.6%N/A5.6 $0.33 10/31/202210,740,000 shares $2.95 million +4.6%N/A5.6 $0.27 10/15/202210,270,000 shares $7.37 million -12.1%18.4%9.3 $0.72 9/30/202211,680,000 shares $7.48 million -7.1%20.9%16.4 $0.64 9/15/202212,570,000 shares $7.67 million +1.1%22.5%16.5 $0.61 8/31/202212,430,000 shares $8.02 million +0.3%22.3%15.8 $0.65 8/15/202212,390,000 shares $13.75 million -3.4%22.3%13.9 $1.11 7/31/202212,820,000 shares $9.49 million +1.0%23.4%16.9 $0.74 7/15/202212,690,000 shares $10.62 million +2.2%23.1%16 $0.84 6/30/202212,420,000 shares $10.40 million -13.7%22.7%13.7 $0.84 6/15/202214,390,000 shares $14.53 million +6.0%26.2%16 $1.01Trump wipes out trillions overnight… (Ad)Is there anybody more powerful than Donald Trump right now? In a single tariff announcement, he wiped out nearly $5 trillion in wealth from the S&P 500 and $6.4 trillion from the Dow Jones… Not to mention the countless trillions of dollars lost in every market around the world… leaving the major political powers scrambling in fear of Trump’s next move.Whether you take some of that wealth for yourself depends on if you watch this controversial exposé 5/31/202213,580,000 shares $13.17 million +2.3%24.5%17.3 $0.97 5/15/202213,280,000 shares $15.80 million +3.5%23.9%20.3 $1.19 4/30/202212,830,000 shares $18.22 million +7.7%23.5%20.2 $1.42 4/15/202211,910,000 shares $23.70 million +8.6%21.8%18.8 $1.99 3/31/202210,970,000 shares $24.35 million -2.5%21.5%20.5 $2.22 3/15/202211,250,000 shares $23.96 million +4.7%21.8%21.4 $2.13 2/28/202210,750,000 shares $30.42 million +3.9%20.9%20.2 $2.83 2/15/202210,350,000 shares $33.64 million +1.4%20.1%19.8 $3.25 1/31/202210,210,000 shares $28.69 million -3.8%19.8%17.6 $2.81 1/15/202210,610,000 shares $32.15 million -0.3%20.6%19.9 $3.03 12/31/202110,640,000 shares $39.05 million +1.1%20.7%21.6 $3.67 12/15/202110,520,000 shares $42.19 million -0.8%20.4%21.6 $4.01 11/30/202110,600,000 shares $42.61 million -1.2%20.6%22 $4.02 11/15/202110,730,000 shares $55.58 million -0.4%21.2%21.5 $5.18 10/29/202110,770,000 shares $63.11 million +0.3%21.4%20 $5.86 10/15/202110,740,000 shares $60.68 million -1.5%21.3%18.9 $5.65 9/30/202110,900,000 shares $62.46 million -1.4%21.7%18.2 $5.73 9/15/202111,050,000 shares $67.74 million +1.8%22.0%14.7 $6.13 8/31/202110,850,000 shares $65.97 million -0.9%21.6%14.6 $6.08 8/13/202110,950,000 shares $73.26 million -1.4%21.8%14.7 $6.69 7/30/202111,100,000 shares $91.58 million -0.4%22.3%14.8 $8.25 7/15/202111,140,000 shares $82.55 million +10.6%22.3%15 $7.41 6/30/202110,070,000 shares $80.16 million No Change20.2%13.1 $7.96 6/15/202110,070,000 shares $77.54 million +5.2%20.2%14.8 $7.70 5/28/20219,570,000 shares $66.61 million +15.3%19.1%12 $6.96 5/14/20218,300,000 shares $52.21 million +11.4%N/A9.4 $6.29 4/30/20217,450,000 shares $51.63 million +17.0%N/A6.6 $6.93 4/15/20216,370,000 shares $45.55 million +20.0%N/A5.2 $7.15 3/31/20215,310,000 shares $36.80 million +48.3%N/A4.4 $6.93 3/15/20213,580,000 shares $25.81 million +71.3%N/A3.1 $7.21 2/26/20212,090,000 shares $16.07 million -4.1%4.4%1.8 $7.69 2/12/20212,180,000 shares $16.81 million -21.3%4.6%1.9 $7.71 1/29/20212,770,000 shares $12.91 million -2.1%6.5%2.5 $4.66 1/15/20212,830,000 shares $13.02 million No Change6.6%3.5 $4.60 12/31/20202,830,000 shares $11.21 million -1.7%6.6%3.5 $3.96 12/15/20202,880,000 shares $12.44 million +0.4%6.7%3.4 $4.32 11/30/20202,870,000 shares $15.53 million -2.4%6.7%3.7 $5.41 11/15/20202,940,000 shares $15.05 million -5.2%6.9%4.2 $5.12 10/30/20203,100,000 shares $13.39 million +21.6%7.1%4.3 $4.32 10/15/20202,550,000 shares $10.94 million -2.3%5.9%3.4 $4.29 9/30/20202,610,000 shares $8.87 million -10.6%6.0%2.9 $3.40 9/15/20202,920,000 shares $10.66 million -6.4%6.8%3.1 $3.65 8/31/20203,120,000 shares $11.98 million -17.7%7.2%3.1 $3.84 8/14/20203,790,000 shares $15.01 million -16.0%8.8%3.4 $3.96 7/31/20204,510,000 shares $17.14 million +20.3%10.5%3.2 $3.80 7/15/20203,750,000 shares $14.89 million -24.2%8.7%2.1 $3.97 6/30/20204,950,000 shares $19.16 million +12.2%11.5%2.8 $3.87 6/15/20204,410,000 shares $17.64 million -18.5%10.3%2.4 $4.00 5/29/20205,410,000 shares $20.99 million +48.2%12.5%2.8 $3.88 5/15/20203,650,000 shares $10.15 million +18.1%8.5%1.9 $2.78Trump wipes out trillions overnight… (Ad)Is there anybody more powerful than Donald Trump right now? In a single tariff announcement, he wiped out nearly $5 trillion in wealth from the S&P 500 and $6.4 trillion from the Dow Jones… Not to mention the countless trillions of dollars lost in every market around the world… leaving the major political powers scrambling in fear of Trump’s next move.Whether you take some of that wealth for yourself depends on if you watch this controversial exposé SIEN Short Interest - Frequently Asked Questions What is Sientra's current short interest? Short interest is the volume of Sientra shares that have been sold short but have not yet been closed out or covered. As of January 31st, investors have sold 1,310,000 shares of SIEN short. 12.11% of Sientra's shares are currently sold short. Learn More on Sientra's current short interest. What is a good short interest ratio for Sientra? 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. SIEN shares currently have a short interest ratio of 11.0. Learn More on Sientra's short interest ratio. What is a good short interest percentage for Sientra? 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. 12.11% of Sientra's floating shares are currently sold short. Is Sientra's short interest increasing or decreasing? Sientra saw a increase in short interest during the month of January. As of January 31st, there was short interest totaling 1,310,000 shares, an increase of 0.8% from the previous total of 1,300,000 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 Sientra's float size? Sientra currently has issued a total of 11,960,000 shares. Some of Sientra'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. Sientra currently has a public float of 10,820,000 shares. How does Sientra's short interest compare to its competitors? 12.11% of Sientra's shares are currently sold short. Here is how the short interest of companies in the sector of "medical" compare to Sientra: Brainstorm Cell Therapeutics Inc. (6.84%), PharmaCyte Biotech, Inc. (0.35%), bioAffinity Technologies, Inc. (3.28%), Aytu BioPharma, Inc. (1.98%), Traws Pharma, Inc. (2.06%), Citius Pharmaceuticals, Inc. (8.57%), Jaguar Health, Inc. (9.48%), Turnstone Biologics Corp. (2.19%), Inspira Technologies Oxy B.H.N. Ltd. (0.38%), Genprex, Inc. (6.94%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: T-Mobile US, Inc. ($4.48 billion), General Motors ($3.85 billion), Charter Communications, Inc. ($3.38 billion), Occidental Petroleum Co. ($3.00 billion), Super Micro Computer, Inc. ($2.66 billion), Tractor Supply ($2.37 billion), Coinbase Global, Inc. ($2.25 billion), Moderna, Inc. ($2.11 billion), Royal Caribbean Cruises Ltd. ($2.06 billion), and Floor & Decor Holdings, Inc. ($1.67 billion). View all of the most shorted stocks. What does it mean to sell short Sientra stock? Short selling SIEN is an investing strategy that aims to generate trading profit from Sientra as its price is falling. 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 Sientra? A short squeeze for Sientra 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 SIEN, which in turn drives the price of the stock up even further. How often is Sientra'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 SIEN, twice per month. The most recent reporting period available is January, 31 2024. 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