COMPASS Pathways (CMPS) Short Interest Ratio & Short Volume $4.58 -0.03 (-0.65%) Closing price 04:00 PM EasternExtended Trading$4.64 +0.06 (+1.22%) As of 05:47 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock COMPASS Pathways Short Interest DataCOMPASS Pathways (CMPS) has a short interest of 8.44 million shares, representing 9.16% of the float (the number of shares available for trading by the public). This marks a -3.87% decrease in short interest from the previous month. The short interest ratio (days to cover) is 3.1, indicating that it would take 3.1 days of the average trading volume of 1.82 million shares to cover all short positions.Current Short Interest8,440,000 sharesPrevious Short Interest8,780,000 sharesChange Vs. Previous Month-3.87%Dollar Volume Sold Short$36.71 millionShort Interest Ratio3.1 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares95,940,000 sharesShort Percent of Float9.16%Today's Trading Volume3,061,561 sharesAverage Trading Volume1,817,505 sharesToday's Volume Vs. Average168% Short Selling COMPASS Pathways? Sign up to receive the latest short interest report for COMPASS Pathways and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartCMPS Short Interest Over TimeCMPS Days to Cover Over TimeCMPS Percentage of Float Shorted Over Time COMPASS Pathways Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/20258,440,000 shares $36.71 million -3.9%9.2%3.1 $4.35 7/15/20258,780,000 shares $31.26 million -7.5%N/A3.4 $3.56 6/30/20259,490,000 shares $26.57 million +79.4%10.6%4.1 $2.80 6/15/20255,290,000 shares $23.22 million +9.3%5.9%2.6 $4.39 5/31/20254,840,000 shares $20.04 million -5.1%7.4%4.4 $4.14 5/15/20255,100,000 shares $20.15 million +2.2%7.8%4.9 $3.95 4/30/20254,990,000 shares $19.86 million +3.1%N/A4.9 $3.98 4/15/20254,840,000 shares $14.62 million -7.5%7.4%4.3 $3.02 3/31/20255,230,000 shares $14.96 million -7.3%8.0%4.4 $2.86 3/15/20255,640,000 shares $19.63 million -8.6%8.6%4.9 $3.48 Get the Latest News and Ratings for CMPS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for COMPASS Pathways and its competitors with MarketBeat's FREE daily newsletter. 2/28/20256,170,000 shares $24.25 million +13.4%9.4%5.6 $3.93 2/15/20255,440,000 shares $24.86 million +21.7%8.3%5.3 $4.57 1/31/20254,470,000 shares $19.27 million +3.7%N/A4.1 $4.31 1/15/20254,310,000 shares $14.87 million +10.8%N/A3.9 $3.45 12/31/20243,890,000 shares $14.70 million +0.3%N/A3.9 $3.78 12/15/20243,880,000 shares $16.37 million +0.8%N/A4.3 $4.22 11/30/20243,850,000 shares $17.69 million -7.7%N/A4.5 $4.60 11/15/20244,170,000 shares $21.02 million -23.5%N/A5 $5.04 10/31/20245,450,000 shares $25.94 million -6.2%N/A7.3 $4.76 10/15/20245,810,000 shares $34.51 million -9.1%N/A11.5 $5.94 9/30/20246,390,000 shares $40.26 million +8.9%N/A12.4 $6.30 9/15/20245,870,000 shares $42.56 million +4.8%N/A13.2 $7.25 8/31/20245,600,000 shares $41.89 million +19.7%N/A12.8 $7.48 8/15/20244,680,000 shares $32.99 million +21.6%N/A10.4 $7.05 7/31/20243,850,000 shares $29.38 million -11.9%N/A9.3 $7.63 7/15/20244,370,000 shares $31.11 million +2.1%N/A10.7 $7.12 6/30/20244,280,000 shares $25.85 million +0.9%N/A10.6 $6.04 6/15/20244,240,000 shares $28.24 million +17.5%N/A8.5 $6.66 5/31/20243,610,000 shares $26.64 million +5.6%N/A6.9 $7.38 5/15/20243,420,000 shares $28.32 million +0.3%N/A5.8 $8.28 4/30/20243,410,000 shares $29.22 million +2.1%N/A5.3 $8.57 4/15/20243,340,000 shares $27.79 million +6.7%N/A4.7 $8.32 3/31/20243,130,000 shares $26.04 million -0.6%N/A4.3 $8.32 3/15/20243,150,000 shares $31.19 million -15.8%N/A4.6 $9.90 2/29/20243,740,000 shares $38.41 million -4.6%N/A4.9 $10.27 2/15/20243,920,000 shares $41.63 million +10.4%N/A5.8 $10.62 1/31/20243,550,000 shares $40.01 million +1.7%N/A5.7 $11.27 1/15/20243,490,000 shares $29.46 million +14.1%N/A6.6 $8.44 12/31/20233,060,000 shares $26.78 million -29.7%N/A5.7 $8.75 12/15/20234,350,000 shares $34.80 million +12.7%N/A8.3 $8.00BREAKING: The House just passed 3 pro-crypto bills! 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Discover the under-the-radar project I believe will skyrocket as a result. 11/30/20233,860,000 shares $23.08 million -1.3%N/A8.4 $5.98 11/15/20233,910,000 shares $23.46 million -4.4%N/A8.9 $6.00 10/31/20234,090,000 shares $23.44 million +0.5%N/A8.7 $5.73 10/15/20234,070,000 shares $24.38 million -1.0%N/A9.1 $5.99 9/30/20234,110,000 shares $30.41 million +4.3%N/A9.1 $7.40 9/15/20233,940,000 shares $37.08 million +0.3%N/A9.2 $9.41 8/31/20233,930,000 shares $35.57 million +3.2%N/A10.6 $9.05 8/15/20233,810,000 shares $29.11 million +3.5%N/A11.1 $7.64 7/31/20233,680,000 shares $34.30 million +6.4%N/A12.4 $9.32 7/15/20233,460,000 shares $31.43 million +44.2%N/A12.1 $9.09 6/30/20232,400,000 shares $19.87 million -1.2%N/A9.1 $8.28 6/15/20232,430,000 shares $19.56 million -3.2%N/A9.6 $8.05 5/31/20232,510,000 shares $18.42 million -8.1%N/A9.5 $7.34 5/15/20232,730,000 shares $23.31 million -0.4%N/A10.2 $8.54 4/30/20232,740,000 shares $21.97 million -1.1%N/A9.9 $8.02 4/15/20232,770,000 shares $27.53 million -35.1%N/A9.7 $9.94 3/31/20234,270,000 shares $42.40 million -6.4%N/A14 $9.93 3/15/20234,560,000 shares $37.48 million -0.7%N/A17 $8.22 2/28/20234,590,000 shares $37.87 million +2.9%N/A17.4 $8.25 2/15/20234,460,000 shares $41.88 million +8.5%N/A17.1 $9.39 1/31/20234,110,000 shares $42.66 million +2.5%N/A15.3 $10.38 1/15/20234,010,000 shares $38.30 million +3.6%N/A14.3 $9.55 12/30/20223,870,000 shares $31.08 million -0.8%N/A13.4 $8.03 12/15/20223,900,000 shares $38.03 million No ChangeN/A13 $9.75 11/30/20223,900,000 shares $40.17 million -1.5%N/A12.5 $10.30 11/15/20223,960,000 shares $42.29 million +1.3%N/A11.9 $10.68 10/31/20223,910,000 shares $41.21 million +0.3%N/A10.9 $10.54 10/15/20223,900,000 shares $36.89 million +1.0%N/A10.5 $9.46 9/30/20223,860,000 shares $41.42 million +0.3%N/A10.2 $10.73 9/15/20223,850,000 shares $56.36 million +5.8%N/A10.6 $14.64 8/31/20223,640,000 shares $59.48 million +7.4%N/A10 $16.34 8/15/20223,390,000 shares $60.65 million -2.6%N/A9.6 $17.89 7/31/20223,480,000 shares $54.25 million -4.1%N/A9.6 $15.59 7/15/20223,630,000 shares $43.89 million +5.2%N/A10.6 $12.09 6/30/20223,450,000 shares $37.33 million +16.6%N/A11 $10.82 6/15/20222,960,000 shares $27.85 million -3.3%N/A9.7 $9.41 5/31/20223,060,000 shares $27.82 million +1.3%N/A10.2 $9.09 5/15/20223,020,000 shares $23.04 million +8.2%N/A10 $7.63 4/30/20222,790,000 shares $25.28 million +3.0%N/A10.3 $9.06 4/15/20222,710,000 shares $34.15 million +9.3%N/A10.2 $12.60 3/31/20222,480,000 shares $31.97 million +9.3%N/A7.8 $12.89 3/15/20222,270,000 shares $26.08 million No ChangeN/A6.3 $11.49 2/28/20222,270,000 shares $32.78 million +9.7%N/A5.1 $14.44 2/15/20222,070,000 shares $31.51 million +13.1%N/A4.2 $15.22 1/31/20221,830,000 shares $28.82 million +16.6%N/A2.5 $15.75 1/15/20221,570,000 shares $28.10 million +3.3%N/A2 $17.90 12/31/20211,520,000 shares $33.59 million +68.6%N/A1.9 $22.10 12/15/2021901,400 shares $21.39 million +11.5%N/A1.2 $23.73 11/30/2021808,700 shares $26.85 million -16.6%N/A1.2 $33.20 11/15/2021970,000 shares $33.86 million -13.4%N/A1.6 $34.91BREAKING: The House just passed 3 pro-crypto bills! 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Discover the under-the-radar project I believe will skyrocket as a result. 10/29/20211,120,000 shares $47.26 million +44.7%N/A2 $42.20 10/15/2021774,200 shares $24.94 million +38.2%N/A2.2 $32.22 9/30/2021560,300 shares $16.74 million -0.2%N/A1.7 $29.87 9/15/2021561,300 shares $18.27 million +38.0%N/A1.6 $32.55 8/31/2021406,900 shares $13.79 million -35.3%N/A1.1 $33.90 8/13/2021629,200 shares $19.04 million +16.0%N/A1.6 $30.26 7/30/2021542,300 shares $19.24 million +16.1%1.5%1.3 $35.48 7/15/2021467,100 shares $16.24 million -64.1%1.3%1 $34.76 6/30/20211,300,000 shares $49.60 million -12.8%3.6%2.7 $38.15 6/15/20211,490,000 shares $56.49 million -8.6%4.1%3.3 $37.91 5/28/20211,630,000 shares $56.56 million -12.8%4.5%3.7 $34.70 5/14/20211,870,000 shares $61.32 million +4.5%5.2%4.2 $32.79 4/30/20211,790,000 shares $69.74 million -2.7%5.1%3.8 $38.96 4/15/20211,840,000 shares $66.15 million +14.3%5.2%4.7 $35.95 3/31/20211,610,000 shares $56.83 million +5.9%4.6%4.1 $35.30 3/15/20211,520,000 shares $62.78 million +28.8%4.3%4 $41.30 2/26/20211,180,000 shares $56.89 million +24.6%3.3%3.1 $48.21 2/12/2021947,300 shares $47.35 million -5.3%2.7%2.4 $49.98 1/29/20211,000,000 shares $43.97 million +4.3%N/A3 $43.97 1/15/2021959,200 shares $41.08 million No ChangeN/A2.6 $42.83 CMPS Short Interest - Frequently Asked Questions What is COMPASS Pathways' current short interest? Short interest is the volume of COMPASS Pathways shares that have been sold short but have not yet been closed out or covered. As of July 31st, traders have sold 8,440,000 shares of CMPS short. 9.16% of COMPASS Pathways' shares are currently sold short. Learn More on COMPASS Pathways' current short interest. What is a good short interest ratio for COMPASS Pathways? 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. CMPS shares currently have a short interest ratio of 3.0. Learn More on COMPASS Pathways's short interest ratio. Which institutional investors are shorting COMPASS Pathways? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of COMPASS Pathways: Group One Trading LLC, Boothbay Fund Management LLC, Walleye Capital LLC, and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for COMPASS Pathways? 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. 9.16% of COMPASS Pathways' floating shares are currently sold short. Is COMPASS Pathways' short interest increasing or decreasing? COMPASS Pathways saw a drop in short interest during the month of July. As of July 31st, there was short interest totaling 8,440,000 shares, a drop of 3.9% from the previous total of 8,780,000 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 COMPASS Pathways' short interest compare to its competitors? 9.16% of COMPASS Pathways' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to COMPASS Pathways: Immunocore Holdings PLC Sponsored ADR (17.09%), Aurinia Pharmaceuticals Inc (7.88%), Cidara Therapeutics, Inc. (10.92%), WAVE Life Sciences Ltd. (13.29%), Janux Therapeutics, Inc. (16.04%), Schrodinger, Inc. (16.11%), Edgewise Therapeutics, Inc. (13.20%), Harrow, Inc. (14.46%), Ardelyx, Inc. (11.44%), 89BIO (10.93%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), Strategy Inc ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks. What does it mean to sell short COMPASS Pathways stock? Short selling CMPS is an investing strategy that aims to generate trading profit from COMPASS Pathways as its price is falling. CMPS shares are trading up $0.30 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 COMPASS Pathways? A short squeeze for COMPASS Pathways 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 CMPS, which in turn drives the price of the stock up even further. How often is COMPASS Pathways' 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 CMPS, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Immunocore Short Interest Data Aurinia Pharmaceuticals Short Interest Data Cidara Therapeutics Short Interest Data WAVE Life Sciences Short Interest Data Janux Therapeutics Short Interest Data Schrodinger Short Interest Data Edgewise Therapeutics Short Interest Data Harrow Short Interest Data Ardelyx Short Interest Data 89BIO 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 (NASDAQ:CMPS) was last updated on 8/25/2025 by MarketBeat.com Staff From Our PartnersBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. 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