This company has been marked as potentially delisted and may not be actively trading. Surface Oncology (SURF) Short Interest Ratio & Short Volume Add Compare Share Share Short Interest Stock AnalysisBuy This Stock Surface Oncology Short Interest DataSurface Oncology (SURF) has a short interest of 165,300 shares. This marks a -30.22% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.2, indicating that it would take 0.2 days of the average trading volume of 430,375 shares to cover all short positions.Current Short Interest165,300 sharesPrevious Short Interest236,900 sharesChange Vs. Previous Month-30.22%Dollar Volume Sold Short$150.92 thousandShort Interest Ratio0.2 Days to CoverLast Record DateAugust 15, 2023Outstanding Shares60,824,000 sharesPercentage of Shares Shorted0.27%Today's Trading Volume0 sharesAverage Trading Volume430,375 sharesToday's Volume Vs. Average0% Short Selling Surface Oncology? 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSURF Short Interest Over TimeSURF Days to Cover Over TimeSURF Percentage of Float Shorted Over Time Surface Oncology Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/15/2023165,300 shares $150.92 thousand -30.2%N/A0.2 $0.91 7/31/2023236,900 shares $229.82 thousand -16.7%N/A0.3 $0.97 7/15/2023284,500 shares $259.32 thousand -36.6%N/A0.4 $0.91 6/30/2023448,400 shares $389.93 thousand -44.6%N/A0.7 $0.87 6/15/2023809,000 shares $598.66 thousand -11.4%N/A1.3 $0.74 5/31/2023913,500 shares $717.19 thousand +1.0%N/A4.4 $0.79 5/15/2023904,600 shares $565.56 thousand +6.7%N/A4.3 $0.63 4/30/2023847,700 shares $487.51 thousand +2.3%N/A4.4 $0.58 4/15/2023828,500 shares $571.67 thousand -8.2%N/A4 $0.69 3/31/2023902,100 shares $630.39 thousand -9.2%N/A4.2 $0.70 Get the Latest News and Ratings for SURF and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Surface Oncology and its competitors with MarketBeat's FREE daily newsletter. 3/15/2023993,300 shares $680.71 thousand +17.6%N/A3.9 $0.69 2/28/2023844,400 shares $557.30 thousand +17.7%N/A3 $0.66 2/15/2023717,700 shares $587.80 thousand +4.3%N/A2.5 $0.82 1/31/2023688,200 shares $642.92 thousand -25.9%N/A2.3 $0.93 1/15/2023928,100 shares $918.82 thousand +5.7%N/A2.6 $0.99 12/30/2022877,900 shares $719.88 thousand -3.4%N/A2.5 $0.82 12/15/2022909,100 shares $724.55 thousand -10.9%N/A2.7 $0.80 11/30/20221,020,000 shares $938.40 thousand -11.3%N/A3.1 $0.92 11/15/20221,150,000 shares $1.31 million -17.3%N/A3.1 $1.14 10/31/20221,390,000 shares $1.72 million -4.1%N/A3 $1.24 10/15/20221,450,000 shares $1.51 million -12.1%N/A3 $1.04 9/30/20221,650,000 shares $1.72 million +7.8%N/A3.2 $1.04 9/15/20221,530,000 shares $2.00 million +4.8%N/A2.3 $1.31 8/31/20221,460,000 shares $1.99 million -2.0%N/A2 $1.36 8/15/20221,490,000 shares $2.92 million -11.8%N/A1.9 $1.96 7/31/20221,690,000 shares $2.89 million -29.6%N/A2.2 $1.71 7/15/20222,400,000 shares $4.66 million +47.2%N/A3 $1.94 6/30/20221,630,000 shares $2.67 million -34.3%N/A2 $1.64 6/15/20222,480,000 shares $3.79 million -11.1%N/A3.2 $1.53 5/31/20222,790,000 shares $5.16 million +9.4%N/A3.5 $1.85 5/15/20222,550,000 shares $5.00 million -3.8%N/A3.4 $1.96 4/30/20222,650,000 shares $5.62 million +27.4%7.1%3.7 $2.12 4/15/20222,080,000 shares $5.30 million +11.8%5.6%3.1 $2.55 3/31/20221,860,000 shares $5.47 million +1.1%5.0%2.8 $2.94 3/15/20221,840,000 shares $4.97 million -13.2%5.0%2.7 $2.70 2/28/20222,120,000 shares $7.63 million -2.3%5.7%3.6 $3.60 2/15/20222,170,000 shares $8.05 million -4.0%5.9%3.7 $3.71 1/31/20222,260,000 shares $8.48 million +4.2%6.0%3.8 $3.75 1/15/20222,170,000 shares $9.33 million +10.7%5.8%3.8 $4.30 12/31/20211,960,000 shares $9.37 million -12.1%5.2%3.4 $4.78 12/15/20212,230,000 shares $12.11 million -10.8%5.9%3.6 $5.43 11/30/20212,500,000 shares $14.43 million +5.9%6.6%2.8 $5.77 11/15/20212,360,000 shares $15.03 million -24.4%6.3%2.7 $6.37 10/29/20213,120,000 shares $23.15 million -12.9%8.1%3.6 $7.42 10/15/20213,580,000 shares $27.57 million -1.4%9.4%3.8 $7.70 9/30/20213,630,000 shares $27.48 million +0.6%9.6%3.8 $7.57 9/15/20213,610,000 shares $21.52 million +2.0%9.5%3.5 $5.96 8/31/20213,540,000 shares $22.41 million -5.6%9.4%4.5 $6.33 8/13/20213,750,000 shares $21.15 million -1.1%10.0%4 $5.64 7/30/20213,790,000 shares $22.78 million -20.9%10.1%3.2 $6.01 7/15/20214,790,000 shares $31.23 million +12.4%13.3%4 $6.52 6/30/20214,260,000 shares $31.78 million -5.8%11.8%3.3 $7.46 6/15/20214,520,000 shares $32.82 million -6.8%12.6%3.2 $7.26 5/28/20214,850,000 shares $43.84 million +4.8%13.4%3 $9.04 5/14/20214,630,000 shares $34.08 million +4.3%N/A2.8 $7.36 4/30/20214,440,000 shares $31.97 million -6.7%N/A2.8 $7.20 4/15/20214,760,000 shares $34.94 million +55.1%N/A3.1 $7.34 3/31/20213,070,000 shares $22.26 million +7.7%N/A1.9 $7.25 3/15/20212,850,000 shares $26.31 million +14.9%N/A1.6 $9.23 2/26/20212,480,000 shares $20.93 million +52.2%N/A1.6 $8.44 2/12/20211,630,000 shares $18.58 million -5.8%N/A1.2 $11.40 1/29/20211,730,000 shares $18.87 million +8.1%N/A1.3 $10.91 1/15/20211,600,000 shares $19.12 million -25.6%N/A1.3 $11.95 12/31/20202,150,000 shares $20.83 million +41.5%N/A1.6 $9.69 12/15/20201,520,000 shares $15.93 million +98.3%N/A1.2 $10.48 11/30/2020766,500 shares $6.02 million -23.1%N/A0.9 $7.86 11/15/2020996,600 shares $8.58 million -3.2%N/A1 $8.61 10/30/20201,030,000 shares $8.79 million +56.9%N/A1 $8.53 10/15/2020656,500 shares $6.18 million +15.7%N/A0.6 $9.41 9/30/2020567,400 shares $3.92 million +7.8%N/A0.7 $6.90 SURF Short Interest - Frequently Asked Questions What is Surface Oncology's current short interest? Short interest is the volume of Surface Oncology shares that have been sold short but have not yet been covered or closed out. As of August 15th, traders have sold 165,300 shares of SURF short. Learn More on Surface Oncology's current short interest. Is Surface Oncology's short interest increasing or decreasing? Surface Oncology saw a decrease in short interest in August. As of August 15th, there was short interest totaling 165,300 shares, a decrease of 30.2% from the previous total of 236,900 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 Surface Oncology's short interest compare to its competitors? Here is how the short interest of companies in the industry of "biotechnology" compare to Surface Oncology: Hyperion DeFi, Inc. (27.23%), Adial Pharmaceuticals, Inc. (6.84%), Kaleido Biosciences, Inc. (0.17%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Charter Communications, Inc. ($3.78 billion), Occidental Petroleum Corporation ($3.04 billion), Royal Caribbean Cruises Ltd. ($2.10 billion), Celsius Holdings Inc. ($1.98 billion), Coinbase Global, Inc. ($1.97 billion), T. Rowe Price Group, Inc. ($1.87 billion), Rivian Automotive, Inc. ($1.83 billion), Tractor Supply Company ($1.82 billion), Moderna, Inc. ($1.66 billion), and CarMax, Inc. ($1.49 billion). View all of the most shorted stocks. What does it mean to sell short Surface Oncology stock? Short selling SURF is an investing strategy that aims to generate trading profit from Surface Oncology 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 Surface Oncology? A short squeeze for Surface Oncology 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 SURF, which in turn drives the price of the stock up even further. How often is Surface Oncology'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 SURF, twice per month. The most recent reporting period available is August, 15 2023. More Short Interest Resources from MarketBeat Related Companies Hyperion DeFi Short Interest Adial Pharmaceuticals Short Interest Kaleido Biosciences Short Interest 60 Degrees Pharmaceuticals Short Interest Alpha Tau Medical Short Interest Apollomics Short Interest BriaCell Therapeutics Short Interest Cardio Diagnostics Short Interest Celularity Short Interest CERo Therapeutics Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:SURF) was last updated on 9/19/2025 by MarketBeat.com Staff From Our PartnersTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | SponsoredHe Called Nvidia at $1.10. 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