Myriad Genetics (MYGN) Short Interest Ratio & Short Volume $7.68 +0.28 (+3.78%) Closing price 09/18/2025 04:00 PM EasternExtended Trading$7.68 0.00 (-0.07%) As of 09/18/2025 05:41 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 Myriad Genetics Short Interest DataMyriad Genetics (MYGN) has a short interest of 8.99 million shares, representing 9.90% of the float (the number of shares available for trading by the public). This marks a -4.06% decrease in short interest from the previous month. The short interest ratio (days to cover) is 5.3, indicating that it would take 5.3 days of the average trading volume of 1.34 million shares to cover all short positions.Current Short Interest8,990,000 sharesPrevious Short Interest9,370,000 sharesChange Vs. Previous Month-4.06%Dollar Volume Sold Short$57.27 millionShort Interest Ratio5.3 Days to CoverLast Record DateAugust 31, 2025Outstanding Shares93,040,000 sharesShort Percent of Float9.90%Today's Trading Volume2,146,042 sharesAverage Trading Volume1,344,169 sharesToday's Volume Vs. Average160% Short Selling Myriad Genetics? Sign up to receive the latest short interest report for Myriad Genetics and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMYGN Short Interest Over TimeMYGN Days to Cover Over TimeMYGN Percentage of Float Shorted Over Time Myriad Genetics Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/31/20258,990,000 shares $57.27 million -4.1%9.9%5.3 $6.37 8/15/20259,370,000 shares $53.50 million +10.2%N/A5 $5.71 7/31/20258,500,000 shares $32.64 million +12.4%9.4%3.9 $3.84 7/15/20257,560,000 shares $37.80 million +1.1%N/A3.4 $5.00 6/30/20257,480,000 shares $39.72 million -10.7%8.3%3.3 $5.31 6/15/20258,380,000 shares $42.15 million -4.6%9.3%3.8 $5.03 5/31/20258,780,000 shares $36.70 million +10.9%9.9%4.2 $4.18 5/15/20257,920,000 shares $32.55 million +41.7%8.9%4.1 $4.11 4/30/20255,590,000 shares $41.42 million +8.3%N/A3.3 $7.41 4/15/20255,160,000 shares $41.33 million -3.7%5.8%4.2 $8.01 Get the Latest News and Ratings for MYGN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Myriad Genetics and its competitors with MarketBeat's FREE daily newsletter. 3/31/20255,360,000 shares $47.54 million +5.3%6.0%4.8 $8.87 3/15/20255,090,000 shares $51.26 million +3.7%5.7%4.5 $10.07 2/28/20254,910,000 shares $52.68 million -9.6%5.5%4.3 $10.73 2/15/20255,430,000 shares $79.06 million +11.7%6.1%5 $14.56 1/31/20254,860,000 shares $61.58 million +1.0%N/A4.7 $12.67 1/15/20254,810,000 shares $63.25 million +0.6%N/A4.9 $13.15 12/31/20244,780,000 shares $65.53 million +42.7%N/A5.1 $13.71 12/15/20243,350,000 shares $48.34 million -1.2%N/A3.7 $14.43 11/30/20243,390,000 shares $55.16 million -8.1%N/A4.2 $16.27 11/15/20243,690,000 shares $56.27 million -17.6%N/A4.5 $15.25 10/31/20244,480,000 shares $98.38 million -0.2%N/A6.3 $21.96 10/15/20244,490,000 shares $107.67 million +7.2%N/A6.4 $23.98 9/30/20244,190,000 shares $114.76 million +6.4%N/A5.7 $27.39 9/15/20243,940,000 shares $108.70 million No ChangeN/A5 $27.59 8/31/20243,940,000 shares $111.62 million +1.6%N/A5 $28.33 8/15/20243,880,000 shares $108.06 million -11.6%N/A5.1 $27.85 7/31/20244,390,000 shares $122.79 million +14.3%N/A5.1 $27.97 7/15/20243,840,000 shares $102.30 million -16.7%N/A4.7 $26.64 6/30/20244,610,000 shares $112.76 million -24.3%N/A5.9 $24.46 6/15/20246,090,000 shares $141.29 million +26.6%N/A8.1 $23.20 5/31/20244,810,000 shares $109.48 million -5.7%N/A6.7 $22.76 5/15/20245,100,000 shares $125.77 million -14.3%N/A6.9 $24.66 4/30/20245,950,000 shares $116.44 million +8.2%N/A8.6 $19.57 4/15/20245,500,000 shares $105.44 million -3.0%N/A9 $19.17 3/31/20245,670,000 shares $120.88 million +18.1%N/A8.9 $21.32 3/15/20244,800,000 shares $101.57 million +20.0%N/A7.5 $21.16 2/29/20244,000,000 shares $83.72 million +8.1%N/A6 $20.93 2/15/20243,700,000 shares $87.28 million -0.3%N/A5.8 $23.59 1/31/20243,710,000 shares $79.36 million -2.9%N/A5.4 $21.39 1/15/20243,820,000 shares $75.90 million -10.3%6.0%5.4 $19.87 12/31/20234,260,000 shares $81.54 million -14.8%N/A6.4 $19.14 12/15/20235,000,000 shares $103.70 million +4.4%N/A7.4 $20.74 11/30/20234,790,000 shares $91.44 million -2.2%N/A7.4 $19.09 11/15/20234,900,000 shares $85.36 million -14.8%N/A8 $17.42 10/31/20235,750,000 shares $89.59 million +4.0%N/A10.4 $15.58 10/15/20235,530,000 shares $80.41 million +11.9%N/A10.6 $14.54 9/30/20234,940,000 shares $79.24 million +1.7%N/A9.5 $16.04 9/15/20234,860,000 shares $80.72 million +9.0%N/A9.7 $16.61 8/31/20234,460,000 shares $79.61 million +15.0%N/A9.2 $17.85 8/15/20233,880,000 shares $68.60 million -2.8%N/A7.5 $17.68 7/31/20233,990,000 shares $89.18 million -5.5%N/A7.6 $22.35 7/15/20234,220,000 shares $94.95 million +3.9%N/A8 $22.50 6/30/20234,060,000 shares $94.11 million -0.5%N/A7.3 $23.18 6/15/20234,080,000 shares $93.60 million -3.3%N/A7.3 $22.94 5/31/20234,220,000 shares $93.09 million +11.9%N/A7.2 $22.06 5/15/20233,770,000 shares $70.95 million +2.5%N/A6.1 $18.82 4/30/20233,680,000 shares $78.35 million -1.6%N/A6 $21.29 4/15/20233,740,000 shares $83.29 million -25.9%N/A6.2 $22.27 3/31/20235,050,000 shares $117.31 million -2.7%N/A8.4 $23.23 3/15/20235,190,000 shares $121.08 million +15.9%N/A7.4 $23.33 2/28/20234,480,000 shares $84.76 million +10.6%N/A6.1 $18.92 2/15/20234,050,000 shares $77.96 million +22.7%N/A5.9 $19.25 1/31/20233,300,000 shares $65.08 million +2.8%N/A4.6 $19.72 1/15/20233,210,000 shares $59.93 million -9.6%N/A4.3 $18.67 12/30/20223,550,000 shares $51.51 million -8.3%N/A4.8 $14.51 12/15/20223,870,000 shares $65.52 million +13.5%N/A5.9 $16.93 11/30/20223,410,000 shares $69.09 million -16.0%N/A6 $20.26 11/15/20224,060,000 shares $84.77 million +5.5%N/A7.4 $20.88 10/31/20223,850,000 shares $79.85 million +1.1%N/A7.3 $20.74 10/15/20223,810,000 shares $71.21 million +0.8%N/A7.7 $18.69 9/30/20223,780,000 shares $72.12 million -3.8%N/A7.3 $19.08 9/15/20223,930,000 shares $84.57 million +1.6%N/A7.7 $21.52 8/31/20223,870,000 shares $86.46 million -7.9%N/A7.3 $22.34 8/15/20224,200,000 shares $117.10 million +15.4%N/A7.7 $27.88 7/31/20223,640,000 shares $96.02 million -16.3%4.7%6.3 $26.38 7/15/20224,350,000 shares $95.61 million +23.6%5.7%7.7 $21.98 6/30/20223,520,000 shares $63.96 million -4.1%4.6%6.6 $18.17 6/15/20223,670,000 shares $61.77 million +0.3%4.8%6.8 $16.83 5/31/20223,660,000 shares $70.42 million -5.2%4.8%6.5 $19.24 5/15/20223,860,000 shares $86.35 million +14.2%5.0%6.9 $22.37 4/30/20223,380,000 shares $69.29 million +1.2%4.4%6.4 $20.50 4/15/20223,340,000 shares $80.09 million -7.5%4.4%6.4 $23.98 3/31/20223,610,000 shares $90.97 million -10.4%4.7%6.6 $25.20 3/15/20224,030,000 shares $96.88 million -2.7%5.3%7.4 $24.04 2/28/20224,140,000 shares $100.93 million +0.2%5.4%7.4 $24.38 2/15/20224,130,000 shares $112.13 million -4.0%5.4%7.5 $27.15 1/31/20224,300,000 shares $113.05 million +12.0%5.6%7.6 $26.29 1/15/20223,840,000 shares $106.71 million +6.1%5.0%6.7 $27.79 12/31/20213,620,000 shares $99.91 million -9.1%4.7%7 $27.60 12/15/20213,980,000 shares $107.46 million -2.7%5.2%7.9 $27.00 11/30/20214,090,000 shares $105.77 million +5.7%5.3%9.5 $25.86 11/15/20213,870,000 shares $114.51 million -9.2%5.0%9 $29.59 10/29/20214,260,000 shares $131.08 million -8.8%5.5%10.4 $30.77 10/15/20214,670,000 shares $148.23 million -1.5%6.2%10.9 $31.74 9/30/20214,740,000 shares $153.05 million -2.9%6.3%9.6 $32.29 9/15/20214,880,000 shares $159.67 million -7.8%6.4%8.6 $32.72 8/31/20215,290,000 shares $189.28 million -5.0%7.0%9.1 $35.78 8/13/20215,570,000 shares $182.64 million -4.6%7.4%9.6 $32.79 7/30/20215,840,000 shares $184.72 million -7.5%7.8%9.8 $31.63 7/15/20216,310,000 shares $197.25 million +18.4%8.4%11 $31.26 6/30/20215,330,000 shares $162.99 million -0.7%7.1%9.4 $30.58 6/15/20215,370,000 shares $160.89 million -0.4%7.2%9.8 $29.96 5/28/20215,390,000 shares $154.42 million -5.3%7.2%9.5 $28.65 5/14/20215,690,000 shares $145.95 million +3.3%N/A9.4 $25.65 4/30/20215,510,000 shares $166.57 million +1.9%N/A8.4 $30.23 4/15/20215,410,000 shares $151.16 million +4.4%N/A7.5 $27.94 3/31/20215,180,000 shares $151.05 million +2.8%7.1%6.5 $29.16 3/15/20215,040,000 shares $156.44 million +0.2%6.9%6.1 $31.04 2/26/20215,030,000 shares $151.96 million -0.2%7.0%5.8 $30.21 2/12/20215,040,000 shares $151.91 million -24.1%7.0%6 $30.14 1/29/20216,640,000 shares $183.53 million -14.5%9.2%7.7 $27.64 1/15/20217,770,000 shares $200.47 million -14.6%10.8%9.9 $25.80 12/31/20209,100,000 shares $178.63 million -5.9%12.6%12.1 $19.63 12/15/20209,670,000 shares $178.70 million -1.1%13.4%14.6 $18.48 11/30/20209,780,000 shares $173.89 million -1.3%13.5%15.6 $17.78 11/15/20209,910,000 shares $165.99 million +3.9%13.7%15.6 $16.75 10/30/20209,540,000 shares $124.69 million +3.6%13.2%13.3 $13.07 10/15/20209,210,000 shares $111.99 million -1.8%12.8%12.9 $12.16 9/30/20209,380,000 shares $122.32 million -11.0%13.1%12.5 $13.04 MYGN Short Interest - Frequently Asked Questions What is Myriad Genetics' current short interest? Short interest is the volume of Myriad Genetics shares that have been sold short but have not yet been closed out or covered. As of August 31st, traders have sold 8,990,000 shares of MYGN short. 9.90% of Myriad Genetics' shares are currently sold short. Learn More on Myriad Genetics' current short interest. What is a good short interest ratio for Myriad Genetics? 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. MYGN shares currently have a short interest ratio of 5.0. Learn More on Myriad Genetics's short interest ratio. Which institutional investors are shorting Myriad Genetics? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Myriad Genetics: 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 Myriad Genetics? 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. 9.90% of Myriad Genetics' floating shares are currently sold short. Is Myriad Genetics' short interest increasing or decreasing? Myriad Genetics saw a decrease in short interest in the month of August. As of August 31st, there was short interest totaling 8,990,000 shares, a decrease of 4.1% from the previous total of 9,370,000 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 Myriad Genetics' short interest compare to its competitors? 9.90% of Myriad Genetics' shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to Myriad Genetics: Amicus Therapeutics, Inc. (7.36%), MannKind Corporation (5.33%), BioCryst Pharmaceuticals, Inc. (13.79%), Celldex Therapeutics, Inc. (11.36%), Novavax, Inc. (27.28%), Innoviva, Inc. (10.80%), OPKO Health, Inc. (9.05%), Dynavax Technologies Corporation (12.39%), Zenas BioPharma, Inc. (57.20%), Geron Corporation (14.99%), 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 ($73.23 billion), Invesco QQQ ($29.52 billion), iShares Russell 2000 ETF ($20.82 billion), iShares 20+ Year Treasury Bond ETF ($10.76 billion), Palo Alto Networks, Inc. ($9.37 billion), Strategy Inc ($7.58 billion), Invesco S&P 500 Equal Weight ETF ($6.78 billion), SPDR S&P Biotech ETF ($6.72 billion), AppLovin Corporation ($6.37 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($6.29 billion). View all of the most shorted stocks. What does it mean to sell short Myriad Genetics stock? Short selling MYGN is an investing strategy that aims to generate trading profit from Myriad Genetics as its price is falling. MYGN shares are trading up $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 Myriad Genetics? A short squeeze for Myriad Genetics 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 MYGN, which in turn drives the price of the stock up even further. How often is Myriad Genetics' 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 MYGN, twice per month. The most recent reporting period available is August, 31 2025. More Short Interest Resources from MarketBeat Related Companies Amicus Therapeutics Short Interest MannKind Short Interest BioCryst Pharmaceuticals Short Interest Celldex Therapeutics Short Interest Novavax Short Interest Innoviva Short Interest OPKO Health Short Interest Dynavax Technologies Short Interest Zenas BioPharma Short Interest Geron 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:MYGN) was last updated on 9/19/2025 by MarketBeat.com Staff From Our PartnersHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. 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