Krystal Biotech (KRYS) Short Interest Ratio & Short Volume $190.78 -5.18 (-2.64%) Closing price 04:00 PM EasternExtended Trading$187.64 -3.14 (-1.65%) As of 05:28 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 EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Krystal Biotech Short Interest DataKrystal Biotech (KRYS) has a short interest of 3.40 million shares. This marks a -5.56% decrease in short interest from the previous month. The short interest ratio (days to cover) is 9.7, indicating that it would take 9.7 days of the average trading volume of 329,356 shares to cover all short positions.Current Short Interest3,400,000 sharesPrevious Short Interest3,600,000 sharesChange Vs. Previous Month-5.56%Dollar Volume Sold Short$600.20 millionShort Interest Ratio9.7 Days to CoverLast Record DateSeptember 30, 2025Outstanding Shares28,940,000 sharesPercentage of Shares Shorted11.75%Today's Trading Volume226,727 sharesAverage Trading Volume329,356 sharesToday's Volume Vs. Average69% Short Selling Krystal Biotech? Sign up to receive the latest short interest report for Krystal Biotech 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 ChartKRYS Short Interest Over TimeKRYS Days to Cover Over TimeKRYS Percentage of Float Shorted Over Time Krystal Biotech Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 9/30/20253,400,000 shares $600.20 million -5.6%N/A9.7 $176.53 9/15/20253,600,000 shares $560.56 million +4.4%N/A10 $155.71 8/31/20253,450,000 shares $509.57 million -0.9%13.8%9.7 $147.70 8/15/20253,480,000 shares $522.94 million +2.4%N/A9.7 $150.27 7/31/20253,400,000 shares $523.16 million +8.3%13.6%8.8 $153.87 7/15/20253,140,000 shares $463.87 million -1.3%N/A8.9 $147.73 6/30/20253,180,000 shares $437.12 million +5.0%12.8%8.6 $137.46 6/15/20253,030,000 shares $415.32 million +3.8%12.1%8.2 $137.07 5/31/20252,920,000 shares $371.02 million +12.3%11.8%8.6 $127.06 5/15/20252,600,000 shares $338.86 million +9.7%10.5%7.7 $130.33 Get the Latest News and Ratings for KRYS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Krystal Biotech and its competitors with MarketBeat's FREE daily newsletter. 4/30/20252,370,000 shares $402.62 million -2.1%N/A7.4 $169.88 4/15/20252,420,000 shares $409.29 million -10.7%9.8%8.5 $169.13 3/31/20252,710,000 shares $488.61 million +0.4%11.0%9.5 $180.30 3/15/20252,700,000 shares $484.33 million -2.2%10.9%9.9 $179.38 2/28/20252,760,000 shares $494.73 million -13.5%11.2%9.9 $179.25 2/15/20253,190,000 shares $488.84 million +6.0%12.9%11.9 $153.24 1/31/20253,010,000 shares $480.82 million -7.4%N/A11.5 $159.74 1/15/20253,250,000 shares $475.93 million -3.6%N/A12.2 $146.44 12/31/20243,370,000 shares $527.94 million -8.9%N/A13.6 $156.66 12/15/20243,700,000 shares $605.47 million +1.4%N/A15.4 $163.64 11/30/20243,650,000 shares $720.58 million +1.4%N/A15.5 $197.42 11/15/20243,600,000 shares $614.66 million +4.4%N/A15.7 $170.74 10/31/20243,450,000 shares $595.23 million -2.5%N/A16.1 $172.53 10/15/20243,540,000 shares $631.75 million +0.6%N/A15.6 $178.46 9/30/20243,520,000 shares $640.75 million -4.1%N/A13.9 $182.03 9/15/20243,670,000 shares $739.80 million -0.5%N/A12.9 $201.58 8/31/20243,690,000 shares $719.99 million +4.2%N/A9.5 $195.12 8/15/20243,540,000 shares $686.69 million +1.1%N/A9.1 $193.98 7/31/20243,500,000 shares $729.61 million -4.6%N/A8.8 $208.46 7/15/20243,670,000 shares $762.92 million +4.6%N/A9.4 $207.88 6/30/20243,510,000 shares $644.58 million +21.0%N/A9.1 $183.64 6/15/20242,900,000 shares $515.56 million +7.8%N/A7.7 $177.78 5/31/20242,690,000 shares $430.53 million -4.3%N/A8.6 $160.05 5/15/20242,810,000 shares $458.56 million +8.5%N/A7.5 $163.19 4/30/20242,590,000 shares $396.58 million +5.7%N/A6.6 $153.12 4/15/20242,450,000 shares $415.89 million +12.9%N/A6.2 $169.75 3/31/20242,170,000 shares $386.11 million -3.1%N/A5.5 $177.93 3/15/20242,240,000 shares $387.48 million -10.8%N/A5.8 $172.98 2/29/20242,510,000 shares $400.27 million +1.6%N/A6.5 $159.47 2/15/20242,470,000 shares $280.05 million +21.7%N/A7.3 $113.38 1/31/20242,030,000 shares $225.84 million +3.1%N/A6.6 $111.25 1/15/20241,970,000 shares $252.87 million -9.2%N/A6.3 $128.36 12/31/20232,170,000 shares $269.21 million +11.3%N/A7.1 $124.06 12/15/20231,950,000 shares $225.73 million -8.0%N/A6.4 $115.76 11/30/20232,120,000 shares $220.97 million +2.4%N/A6.8 $104.23 11/15/20232,070,000 shares $206.09 million -1.4%N/A6.8 $99.56 10/31/20232,100,000 shares $245.43 million +7.1%N/A7.1 $116.87 10/15/20231,960,000 shares $223.01 million -0.5%N/A7.4 $113.78 9/30/20231,970,000 shares $228.52 million +23.9%N/A7.4 $116.00 9/15/20231,590,000 shares $191.07 million +6.0%N/A5.9 $120.17 8/31/20231,500,000 shares $186.72 million -2.6%N/A5.7 $124.48 8/15/20231,540,000 shares $187.82 million +15.8%N/A5.3 $121.96 7/31/20231,330,000 shares $171.70 million -7.6%N/A4.1 $129.10 7/15/20231,440,000 shares $181.83 million +6.7%6.8%4.7 $126.27 6/30/20231,350,000 shares $158.49 million +3.1%6.4%4.5 $117.40 6/15/20231,310,000 shares $163.37 million +10.1%6.2%4.3 $124.71 5/31/20231,190,000 shares $140.24 million +3.5%5.6%4.3 $117.85 5/15/20231,150,000 shares $103.56 million -0.9%5.5%4.4 $90.05 4/30/20231,160,000 shares $97.44 million -7.2%5.5%5.7 $84.00 4/15/20231,250,000 shares $107.98 million +4.2%6.0%6.4 $86.38 3/31/20231,200,000 shares $96.07 million +5.3%5.8%5.9 $80.06 3/15/20231,140,000 shares $83.80 million -4.2%5.5%5.9 $73.51 2/28/20231,190,000 shares $97.47 million +6.3%5.7%6.3 $81.91 2/15/20231,120,000 shares $82.33 million +6.7%5.4%6.5 $73.51 1/31/20231,050,000 shares $87.28 million -7.1%5.1%6.1 $83.12 1/15/20231,130,000 shares $93.73 million +14.4%5.4%6.5 $82.95 12/30/2022988,100 shares $78.28 million -10.2%4.8%5.9 $79.22 12/15/20221,100,000 shares $86.24 million -9.1%5.3%6.9 $78.40 11/30/20221,210,000 shares $94.07 million -3.2%5.9%7.8 $77.74 11/15/20221,250,000 shares $96.51 million -4.6%6.1%7.7 $77.21 10/31/20221,310,000 shares $100.22 million +3.2%6.4%7.9 $76.50 10/15/20221,270,000 shares $83.83 million -3.1%6.2%7.6 $66.01 9/30/20221,310,000 shares $91.31 million +7.4%6.4%7.9 $69.70 9/15/20221,220,000 shares $86.97 million -4.7%6.3%7.3 $71.29 8/31/20221,280,000 shares $89.74 million -5.9%6.6%7.2 $70.11 8/15/20221,360,000 shares $105.48 million -0.7%7.0%7.9 $77.56 7/31/20221,370,000 shares $99.43 million -1.4%7.0%7.5 $72.58 7/15/20221,390,000 shares $100.66 million -10.9%7.1%7.7 $72.42 6/30/20221,560,000 shares $102.43 million -2.5%7.9%8.6 $65.66 6/15/20221,600,000 shares $85.34 million +0.6%8.1%8.4 $53.34 5/31/20221,590,000 shares $93.62 million -1.2%8.1%7.8 $58.88 5/15/20221,610,000 shares $90.77 million +2.6%8.2%7.6 $56.38 4/30/20221,570,000 shares $95.16 million -7.1%8.1%7.4 $60.61 4/15/20221,690,000 shares $122.51 million +5.0%8.7%8 $72.49 3/31/20221,610,000 shares $107.13 million +17.5%8.4%7.2 $66.54 3/15/20221,370,000 shares $84.98 million +13.2%7.1%6.3 $62.03 2/28/20221,210,000 shares $76.90 million +4.3%6.4%5.2 $63.55 2/15/20221,160,000 shares $78.11 million +9.4%N/A2.6 $67.34 1/31/20221,060,000 shares $62.54 million -1.9%5.6%2.4 $59.00 1/15/20221,080,000 shares $67.26 million +4.9%5.7%2.4 $62.28 12/31/20211,030,000 shares $72.05 million -25.4%5.4%2.4 $69.95 12/15/20211,380,000 shares $99.98 million -37.6%7.3%3.3 $72.45 11/30/20212,210,000 shares $178.02 million +6.8%12.3%5.7 $80.55 11/15/20212,070,000 shares $98.22 million +12.5%12.9%13.6 $47.45 10/29/20211,840,000 shares $92.17 million +5.8%11.5%14.2 $50.09 10/15/20211,740,000 shares $84.77 million +13.0%10.8%15 $48.72 9/30/20211,540,000 shares $80.40 million -0.7%9.6%13.6 $52.21 9/15/20211,550,000 shares $86.89 million -4.3%9.7%12.5 $56.06 8/31/20211,620,000 shares $93.86 million +12.5%10.1%12.6 $57.94 8/13/20211,440,000 shares $80.90 million +7.5%9.0%11.6 $56.18 7/30/20211,340,000 shares $78.31 million +24.1%8.4%10.9 $58.44 7/15/20211,080,000 shares $67.46 million -1.8%6.8%9.3 $62.46 6/30/20211,100,000 shares $74.80 million -4.4%6.9%10.1 $68.00 6/15/20211,150,000 shares $72.91 million -0.9%7.2%11.8 $63.40 5/28/20211,160,000 shares $75.68 million -4.1%7.3%11.5 $65.24 5/14/20211,210,000 shares $75.67 million -2.4%7.6%10.7 $62.54 4/30/20211,240,000 shares $99.35 million +3.3%7.8%9.2 $80.12 4/15/20211,200,000 shares $89.72 million -3.2%7.5%8 $74.77 3/31/20211,240,000 shares $90.43 million +6.9%7.9%8 $72.93 3/15/20211,160,000 shares $96.06 million -2.5%7.4%7.1 $82.81 2/26/20211,190,000 shares $93.87 million +10.2%7.9%7.3 $78.88 2/12/20211,080,000 shares $74.19 million -10.7%7.2%6.5 $68.69 1/29/20211,210,000 shares $85.51 million -6.2%8.1%7.3 $70.67 1/15/20211,290,000 shares $85.58 million -5.8%9.6%8.6 $66.34 12/31/20201,370,000 shares $82.76 million +2.2%10.2%9.3 $60.41 12/15/20201,340,000 shares $78.26 million -2.2%10.0%9 $58.40 11/30/20201,370,000 shares $66.94 million -4.2%10.2%9.8 $48.86 11/15/20201,430,000 shares $59.89 million -7.1%10.7%10.6 $41.88 10/30/20201,540,000 shares $69.79 million -11.0%11.5%12.1 $45.32 KRYS Short Interest - Frequently Asked Questions What is Krystal Biotech's current short interest? Short interest is the volume of Krystal Biotech shares that have been sold short but have not yet been closed out or covered. As of September 30th, traders have sold 3,400,000 shares of KRYS short. Learn More on Krystal Biotech's current short interest. What is a good short interest ratio for Krystal Biotech? 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. KRYS shares currently have a short interest ratio of 10.0. Learn More on Krystal Biotech's short interest ratio. Which institutional investors are shorting Krystal Biotech? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Krystal Biotech: Nomura Holdings Inc., LMR Partners LLP, Group One Trading LLC, Nantahala Capital Management LLC, Jane Street Group LLC, and Caption Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is Krystal Biotech's short interest increasing or decreasing? Krystal Biotech saw a decrease in short interest in September. As of September 30th, there was short interest totaling 3,400,000 shares, a decrease of 5.6% from the previous total of 3,600,000 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 Krystal Biotech's short interest compare to its competitors? Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Krystal Biotech: Genmab A/S Sponsored ADR (0.90%), Summit Therapeutics PLC (4.84%), Ascendis Pharma A/S (4.15%), Dr. Reddy's Laboratories Ltd (1.16%), Viatris Inc. (2.70%), Roivant Sciences Ltd. (6.73%), BridgeBio Pharma, Inc. (9.15%), Moderna, Inc. (18.66%), QIAGEN N.V. (3.10%), Elanco Animal Health Incorporated (5.84%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Corporation ($15.71 billion), Robinhood Markets, Inc. ($7.56 billion), Reddit Inc. ($4.55 billion), Coinbase Global, Inc. ($4.53 billion), CoreWeave Inc. ($4.43 billion), Charter Communications, Inc. ($4.07 billion), Seagate Technology Holdings PLC ($3.94 billion), IonQ, Inc. ($3.78 billion), TC Energy Corporation ($3.13 billion), and Live Nation Entertainment, Inc. ($3.12 billion). View all of the most shorted stocks. What does it mean to sell short Krystal Biotech stock? Short selling KRYS is an investing strategy that aims to generate trading profit from Krystal Biotech as its price is falling. KRYS shares are trading down $1.93 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 Krystal Biotech? A short squeeze for Krystal Biotech 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 KRYS, which in turn drives the price of the stock up even further. How often is Krystal Biotech'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 KRYS, twice per month. The most recent reporting period available is September, 30 2025. More Short Interest Resources from MarketBeat Related Companies GMAB Short Interest Data SMMT Short Interest Data ASND Short Interest Data RDY Short Interest Data VTRS Short Interest Data ROIV Short Interest Data BBIO Short Interest Data MRNA Short Interest Data QGEN Short Interest Data ELAN 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:KRYS) was last updated on 10/21/2025 by MarketBeat.com Staff From Our PartnersCapital Gains Tax Strategies for SeniorsCapital gains taxes can take a bite out of your retirement income—unless you have a smart strategy. 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