CareDx (CDNA) Short Interest Ratio & Short Volume $12.17 +0.60 (+5.19%) Closing price 04:00 PM EasternExtended Trading$12.17 0.00 (0.00%) As of 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock CareDx Short Interest DataCareDx (CDNA) has a short interest of 6.18 million shares, representing 12.44% of the float (the number of shares available for trading by the public). This marks a -3.44% decrease in short interest from the previous month. The short interest ratio (days to cover) is 4.0, indicating that it would take 4.0 days of the average trading volume of 1.16 million shares to cover all short positions.Current Short Interest6,180,000 sharesPrevious Short Interest6,400,000 sharesChange Vs. Previous Month-3.44%Dollar Volume Sold Short$75.89 millionShort Interest Ratio4.0 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares53,230,000 sharesFloat Size49,660,000 sharesShort Percent of Float12.44%Today's Trading Volume1,603,360 sharesAverage Trading Volume1,164,717 sharesToday's Volume Vs. Average138% Short Selling CareDx? Sign up to receive the latest short interest report for CareDx and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartCDNA Short Interest Over TimeCDNA Days to Cover Over TimeCDNA Percentage of Float Shorted Over Time CareDx Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/20256,180,000 shares $75.89 million -3.4%12.4%4 $12.28 7/15/20256,400,000 shares $121.66 million No Change12.3%4.2 $19.01 6/30/20256,400,000 shares $125.06 million +1.9%12.3%5.9 $19.54 6/15/20256,280,000 shares $116.75 million -3.4%12.1%6 $18.59 5/31/20256,500,000 shares $110.11 million -0.9%12.5%6.4 $16.94 5/15/20256,560,000 shares $105.62 million +7.0%12.6%6.6 $16.10 4/30/20256,130,000 shares $103.47 million +1.3%11.8%6.5 $16.88 4/15/20256,050,000 shares $115.92 million +8.8%11.7%7.7 $19.16 3/31/20255,560,000 shares $98.69 million -3.1%10.8%6.5 $17.75 3/15/20255,740,000 shares $108.49 million +10.8%11.1%6.8 $18.90 Get the Latest News and Ratings for CDNA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for CareDx and its competitors with MarketBeat's FREE daily newsletter. 2/28/20255,180,000 shares $114.74 million +8.4%10.0%6 $22.15 2/15/20254,780,000 shares $117.11 million +7.2%9.5%5.9 $24.50 1/31/20254,460,000 shares $103.92 million +1.6%8.9%5.5 $23.30 1/15/20254,390,000 shares $99.65 million +10.6%8.7%5.7 $22.70 12/31/20243,970,000 shares $85.00 million +27.2%7.9%4.9 $21.41 12/15/20243,120,000 shares $71.32 million -6.6%6.2%3.7 $22.86 11/30/20243,340,000 shares $81.96 million +8.8%6.7%4.1 $24.54 11/15/20243,070,000 shares $64.99 million -11.0%6.1%3.6 $21.17 10/31/20243,450,000 shares $76.35 million -0.9%6.9%3.8 $22.13 10/15/20243,480,000 shares $91.70 million -4.9%7.1%3.5 $26.35 9/30/20243,660,000 shares $114.28 million No Change7.4%3.9 $31.23 9/15/20243,660,000 shares $105.66 million +10.6%7.4%4.2 $28.87 8/31/20243,310,000 shares $101.72 million +3.1%6.7%3.6 $30.73 8/15/20243,210,000 shares $91.00 million -7.8%6.5%3.5 $28.35 7/31/20243,480,000 shares $69.57 million -11.2%7.1%3.8 $19.99 7/15/20243,920,000 shares $63.27 million +2.6%8.0%4.9 $16.14 6/30/20243,820,000 shares $59.32 million -28.7%8.3%4.7 $15.53 6/15/20245,360,000 shares $76.06 million -0.2%11.7%6.6 $14.19 5/31/20245,370,000 shares $69.86 million +1.1%11.7%6.7 $13.01 5/15/20245,310,000 shares $78.48 million +3.3%11.6%6 $14.78 4/30/20245,140,000 shares $39.89 million +9.6%10.6%6.2 $7.76 4/15/20244,690,000 shares $38.46 million -9.5%9.5%5.3 $8.20 3/31/20245,180,000 shares $54.86 million +18.8%10.5%5.5 $10.59 3/15/20244,360,000 shares $44.21 million +16.0%8.8%4.5 $10.14 2/29/20243,760,000 shares $40.01 million +4.4%7.6%3.5 $10.64 2/15/20243,600,000 shares $30.60 million +26.3%7.0%3.4 $8.50 1/31/20242,850,000 shares $24.40 million +20.3%5.5%2.4 $8.56 1/15/20242,370,000 shares $26.09 million +3.0%4.6%2 $11.01 12/31/20232,300,000 shares $27.60 million -27.0%4.5%1.9 $12.00 12/15/20233,150,000 shares $31.41 million -7.9%6.1%2.7 $9.97Washington Thinks They Own Your Bank Account (Ad)What If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what the Department of Justice just admitted in court—claiming cash isn't legally your property. What does that mean? It means Washington thinks they can seize, freeze, or drain your accounts—whenever they want.Get your free guide now by clicking here >> 11/30/20233,420,000 shares $33.21 million -12.1%6.6%3.2 $9.71 11/15/20233,890,000 shares $35.17 million -13.6%7.5%4.1 $9.04 10/31/20234,500,000 shares $24.35 million +10.6%8.7%5.4 $5.41 10/15/20234,070,000 shares $23.00 million +16.3%7.9%5.3 $5.65 9/30/20233,500,000 shares $24.50 million -10.3%6.8%4.7 $7.00 9/15/20233,900,000 shares $30.89 million -5.8%N/A4.7 $7.92 8/31/20234,140,000 shares $38.54 million +2.5%N/A4.5 $9.31 8/15/20234,040,000 shares $39.03 million -8.4%N/A4.4 $9.66 7/31/20234,410,000 shares $48.11 million -17.3%8.5%4.7 $10.91 7/15/20235,330,000 shares $52.07 million +6.6%10.3%6 $9.77 6/30/20235,000,000 shares $42.50 million -14.2%9.7%5.6 $8.50 6/15/20235,830,000 shares $48.16 million +2.3%11.3%7.1 $8.26 5/31/20235,700,000 shares $45.49 million -8.1%11.0%6.7 $7.98 5/15/20236,200,000 shares $51.71 million +19.2%12.0%4.5 $8.34 4/30/20235,200,000 shares $42.07 million +1.6%10.0%3.8 $8.09 4/15/20235,120,000 shares $45.47 million -0.2%9.9%3.7 $8.88 3/31/20235,130,000 shares $46.89 million +0.6%9.9%3.7 $9.14 3/15/20235,100,000 shares $50.39 million +4.5%9.9%3.6 $9.88 2/28/20234,880,000 shares $82.08 million -1.0%9.4%3.5 $16.82 2/15/20234,930,000 shares $77.35 million -2.6%9.5%5.3 $15.69 1/31/20235,060,000 shares $75.60 million +2.2%9.8%4.9 $14.94 1/15/20234,950,000 shares $70.49 million +3.6%N/A4.8 $14.24 12/30/20224,780,000 shares $54.54 million +43.5%N/A4.7 $11.41 12/15/20223,330,000 shares $41.79 million -26.0%N/A3.3 $12.55 11/30/20224,500,000 shares $58.28 million -1.8%N/A4.7 $12.95 11/15/20224,580,000 shares $63.25 million -5.2%N/A4.9 $13.81 10/31/20224,830,000 shares $96.17 million +3.0%N/A5.7 $19.91 10/15/20224,690,000 shares $77.15 million -1.1%N/A5.6 $16.45 9/30/20224,740,000 shares $80.67 million +21.9%N/A5.8 $17.02 9/15/20223,890,000 shares $72.59 million +7.2%N/A4.9 $18.66 8/31/20223,630,000 shares $71.11 million +1.1%N/A4.4 $19.59 8/15/20223,590,000 shares $87.17 million -6.5%N/A4.1 $24.28 7/31/20223,840,000 shares $91.35 million -10.5%N/A4.2 $23.79 7/15/20224,290,000 shares $98.24 million +9.4%N/A4.7 $22.90 6/30/20223,920,000 shares $84.20 million +8.9%N/A4.3 $21.48 6/15/20223,600,000 shares $75.92 million +13.9%N/A3.9 $21.09 5/31/20223,160,000 shares $79.47 million -25.8%N/A3.6 $25.15 5/15/20224,260,000 shares $111.78 million -3.6%N/A5.1 $26.24 4/30/20224,420,000 shares $134.54 million +4.5%8.5%5.8 $30.44 4/15/20224,230,000 shares $149.78 million -4.3%8.1%6 $35.41 3/31/20224,420,000 shares $163.50 million +6.3%8.5%6.2 $36.99 3/15/20224,160,000 shares $129.67 million -0.5%8.0%6.3 $31.17 2/28/20224,180,000 shares $160.43 million +7.5%8.1%6.2 $38.38 2/15/20223,890,000 shares $169.99 million +1.8%7.5%5.8 $43.70 1/31/20223,820,000 shares $159.68 million +22.8%7.4%5.6 $41.80 1/15/20223,110,000 shares $129.41 million -2.5%6.0%3.8 $41.61 12/31/20213,190,000 shares $145.08 million -5.6%6.2%4.2 $45.48 12/15/20213,380,000 shares $150.31 million -2.9%6.5%4.4 $44.47 11/30/20213,480,000 shares $150.13 million -1.1%6.7%4.9 $43.14 11/15/20213,520,000 shares $165.40 million -13.5%6.8%5.2 $46.99Washington Thinks They Own Your Bank Account (Ad)What If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what the Department of Justice just admitted in court—claiming cash isn't legally your property. What does that mean? It means Washington thinks they can seize, freeze, or drain your accounts—whenever they want.Get your free guide now by clicking here >> 10/29/20214,070,000 shares $207.57 million -6.2%7.9%6.3 $51.00 10/15/20214,340,000 shares $308.14 million -3.8%8.4%9 $71.00 9/30/20214,510,000 shares $285.80 million +6.6%8.7%9.4 $63.37 9/15/20214,230,000 shares $281.34 million +3.4%8.2%8.8 $66.51 8/31/20214,090,000 shares $299.72 million +2.8%7.9%8.1 $73.28 8/13/20213,980,000 shares $278.00 million +1.3%7.7%7.4 $69.85 7/30/20213,930,000 shares $330.28 million +1.6%7.6%6.6 $84.04 7/15/20213,870,000 shares $302.13 million -1.3%7.6%6.4 $78.07 6/30/20213,920,000 shares $358.76 million -4.2%7.7%6.4 $91.52 6/15/20214,090,000 shares $359.43 million -7.7%8.0%6.7 $87.88 5/28/20214,430,000 shares $356.17 million -2.6%8.7%7 $80.40 5/14/20214,550,000 shares $292.16 million +1.3%N/A6.2 $64.21 4/30/20214,490,000 shares $351.52 million -1.1%N/A6.2 $78.29 4/15/20214,540,000 shares $339.14 million -15.0%N/A6.1 $74.70 3/31/20215,340,000 shares $336.26 million +3.5%N/A6.6 $62.97 3/15/20215,160,000 shares $348.51 million +10.5%N/A6.1 $67.54 2/26/20214,670,000 shares $370.14 million +1.7%N/A5.8 $79.26 2/12/20214,590,000 shares $412.14 million +3.9%N/A6.5 $89.79 1/29/20214,420,000 shares $343.12 million -12.1%N/A6.4 $77.63 1/15/20215,030,000 shares $436.75 million +7.3%N/A7.3 $86.83 12/31/20204,690,000 shares $351.66 million -2.5%N/A7.7 $74.98 12/15/20204,810,000 shares $333.28 million +2.6%N/A7.2 $69.29 11/30/20204,690,000 shares $269.68 million -7.1%N/A8 $57.50 11/15/20205,050,000 shares $275.17 million -2.7%N/A8.9 $54.49 10/30/20205,190,000 shares $265.26 million -0.8%N/A9.5 $51.11 10/15/20205,230,000 shares $268.87 million -12.0%N/A9.1 $51.41 9/30/20205,940,000 shares $225.36 million +5.9%N/A10.4 $37.94 9/15/20205,610,000 shares $189.34 million +0.2%N/A11.6 $33.75 8/31/20205,600,000 shares $191.24 million +8.1%N/A10.1 $34.15 CDNA Short Interest - Frequently Asked Questions What is CareDx's current short interest? Short interest is the volume of CareDx shares that have been sold short but have not yet been covered or closed out. As of July 31st, traders have sold 6,180,000 shares of CDNA short. 12.44% of CareDx's shares are currently sold short. Learn More on CareDx's current short interest. What is a good short interest ratio for CareDx? 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. CDNA shares currently have a short interest ratio of 4.0. Learn More on CareDx's short interest ratio. Which institutional investors are shorting CareDx? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of CareDx: Group One Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for CareDx? 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. 12.44% of CareDx's floating shares are currently sold short. Is CareDx's short interest increasing or decreasing? CareDx saw a decline in short interest in July. As of July 31st, there was short interest totaling 6,180,000 shares, a decline of 3.4% from the previous total of 6,400,000 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 CareDx's float size? CareDx currently has issued a total of 53,230,000 shares. Some of CareDx'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. CareDx currently has a public float of 49,660,000 shares. How does CareDx's short interest compare to its competitors? 12.44% of CareDx's shares are currently sold short. Here is how the short interest of companies in the industry of "healthcare" compare to CareDx: Privia Health Group, Inc. (3.16%), Veracyte, Inc. (7.69%), Addus HomeCare Corporation (3.73%), Progyny, Inc. (9.89%), Celcuity, Inc. (9.43%), LifeStance Health Group, Inc. (5.12%), PACS Group, Inc. (6.32%), Viridian Therapeutics, Inc. (14.53%), Aveanna Healthcare Holdings Inc. (4.86%), AdaptHealth Corp. (11.46%), 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), MicroStrategy Incorporated ($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 CareDx stock? Short selling CDNA is an investing strategy that aims to generate trading profit from CareDx as its price is falling. CDNA shares are trading down $0.28 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 CareDx? A short squeeze for CareDx 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 CDNA, which in turn drives the price of the stock up even further. How often is CareDx'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 CDNA, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Veracyte Short Interest Addus HomeCare Short Interest LifeStance Health Group Short Interest Celcuity Short Interest Progyny Short Interest PACS Group Short Interest Viridian Therapeutics Short Interest Aveanna Healthcare Short Interest Teladoc Health Short Interest AdaptHealth 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:CDNA) was last updated on 8/20/2025 by MarketBeat.com Staff From Our PartnersWashington Thinks They Own Your Bank AccountWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? 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