Kezar Life Sciences (KZR) Short Interest Ratio & Short Volume $3.95 +0.05 (+1.28%) Closing price 04:00 PM EasternExtended Trading$3.95 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Kezar Life Sciences Short Interest DataKezar Life Sciences (KZR) has a short interest of 588,600 shares, representing 9.46% of the float (the number of shares available for trading by the public). This marks a 58.35% increase in short interest from the previous month. The short interest ratio (days to cover) is 11.8, indicating that it would take 11.8 days of the average trading volume of 38,750 shares to cover all short positions.Current Short Interest588,600 sharesPrevious Short Interest371,700 sharesChange Vs. Previous Month+58.35%Dollar Volume Sold Short$2.51 millionShort Interest Ratio11.8 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares7,320,000 sharesFloat Size6,220,000 sharesShort Percent of Float9.46%Today's Trading Volume23,468 sharesAverage Trading Volume38,750 sharesToday's Volume Vs. Average61% Short Selling Kezar Life Sciences? Sign up to receive the latest short interest report for Kezar Life Sciences and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartKZR Short Interest Over TimeKZR Days to Cover Over TimeKZR Percentage of Float Shorted Over Time Kezar Life Sciences Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/2025588,600 shares $2.51 million +58.4%9.5%11.8 $4.27 7/15/2025371,700 shares $1.72 million +51.8%6.0%7.7 $4.62 6/30/2025244,900 shares $1.12 million +363.0%3.9%7.4 $4.58 6/15/202552,900 shares $242.81 thousand +7.5%0.9%1.5 $4.59 5/31/202549,200 shares $205.16 thousand -8.7%0.8%1.8 $4.17 5/15/202553,900 shares $218.83 thousand -21.9%0.9%1.7 $4.06 4/30/202569,000 shares $302.22 thousand +1.3%1.1%2.2 $4.38 4/15/202568,100 shares $279.89 thousand +12.9%1.1%2.6 $4.11 3/31/202560,300 shares $294.26 thousand -0.3%1.0%2 $4.88 3/15/202560,500 shares $355.14 thousand +28.7%1.0%1.8 $5.87 Get the Latest News and Ratings for KZR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Kezar Life Sciences and its competitors with MarketBeat's FREE daily newsletter. 2/28/202547,000 shares $268.37 thousand -61.0%0.8%1.3 $5.71 2/15/2025120,600 shares $710.33 thousand +55.2%1.9%2.8 $5.89 1/31/202577,700 shares $503.50 thousand +5.6%1.3%1.7 $6.48 1/15/202573,600 shares $464.42 thousand -13.7%1.2%1.3 $6.31 12/31/202485,300 shares $573.22 thousand +80.7%1.4%1.2 $6.72 12/15/202447,200 shares $318.60 thousand -54.6%0.8%0.4 $6.75 11/30/2024103,900 shares $776.13 thousand +24.1%1.7%1 $7.47 11/15/202483,700 shares $624.40 thousand -53.0%1.4%0.9 $7.46 10/31/2024178,000 shares $1.33 million -85.0%2.9%1.9 $7.45 10/15/20241,190,000 shares $1.04 million +21.1%N/A1.4 $0.87 9/30/2024982,900 shares $759.98 thousand +13.6%N/A1.2 $0.77 9/15/2024865,600 shares $493.39 thousand -9.3%N/A1.7 $0.57 8/31/2024953,900 shares $572.91 thousand +11.8%N/A1.8 $0.60 8/15/2024853,600 shares $533.16 thousand -17.9%N/A1.5 $0.62 7/31/20241,040,000 shares $676 thousand -9.6%N/A1.6 $0.65 7/15/20241,150,000 shares $730.25 thousand -59.7%N/A1.7 $0.64 6/30/20242,850,000 shares $1.71 million -10.7%N/A4 $0.60 6/15/20243,190,000 shares $2.18 million -8.6%N/A4.9 $0.68 5/31/20243,490,000 shares $2.42 million -5.9%N/A5.1 $0.69 5/15/20243,710,000 shares $2.87 million -10.6%N/A4.7 $0.77 4/30/20244,150,000 shares $3.42 million +8.6%N/A5.3 $0.82 4/15/20243,820,000 shares $3.09 million +7.0%N/A5.1 $0.81 3/31/20243,570,000 shares $3.22 million +5.6%N/A5 $0.90 3/15/20243,380,000 shares $2.97 million +6.3%N/A4.9 $0.88 2/29/20243,180,000 shares $3.34 million +6.0%N/A4.5 $1.05 2/15/20243,000,000 shares $2.53 million -1.6%N/A4.3 $0.84 1/31/20243,050,000 shares $3.02 million +2.4%N/A4.7 $0.99 1/15/20242,980,000 shares $2.77 million +9.6%N/A4.7 $0.93 12/31/20232,720,000 shares $2.58 million +0.7%N/A3.8 $0.95 12/15/20232,700,000 shares $2.26 million +7.6%N/A3.8 $0.84Market Panic: Trump Just Dropped a Bomb on Your Stocks (Ad)tock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tariffs just lit the fuse. Millions of investors are blindsided as stocks plunge… but this is only Phase 1. If you're still holding the wrong assets, you could lose 30% or more in the coming weeks.Don't wait for the next drop to wipe you out. Get the FREE Guide Before Markets Open Tomorrow 11/30/20232,510,000 shares $2.10 million -8.7%N/A4.1 $0.84 11/15/20232,750,000 shares $2.18 million +25.0%N/A5.2 $0.79 10/31/20232,200,000 shares $1.59 million -24.9%N/A4.5 $0.72 10/15/20232,930,000 shares $2.80 million -0.7%N/A6.2 $0.96 9/30/20232,950,000 shares $3.51 million +1.0%N/A6.1 $1.19 9/15/20232,920,000 shares $3.77 million +21.7%N/A7.2 $1.29 8/31/20232,400,000 shares $3.58 million -2.8%N/A3.9 $1.49 8/15/20232,470,000 shares $3.80 million -1.6%N/A3.6 $1.54 7/31/20232,510,000 shares $5.62 million -6.0%N/A3.5 $2.24 7/15/20232,670,000 shares $6.49 million -4.0%N/A3.2 $2.43 6/30/20232,780,000 shares $6.81 million -12.0%N/A3 $2.45 6/15/20233,160,000 shares $8.34 million +10.1%N/A2.8 $2.64 5/31/20232,870,000 shares $7.98 million -2.4%N/A2.7 $2.78 5/15/20232,940,000 shares $8.85 million -14.8%N/A2.9 $3.01 4/30/20233,450,000 shares $8.38 million -6.3%N/A3.5 $2.43 4/15/20233,680,000 shares $8.76 million -30.6%N/A3.8 $2.38 3/31/20235,300,000 shares $16.59 million +8.4%N/A5.6 $3.13 3/15/20234,890,000 shares $22.54 million +13.2%N/A6.8 $4.61 2/28/20234,320,000 shares $27.17 million +3.4%N/A6.7 $6.29 2/15/20234,180,000 shares $27.42 million -5.6%N/A7 $6.56 1/31/20234,430,000 shares $31.76 million +14.5%N/A6.9 $7.17 1/15/20233,870,000 shares $26.47 million -37.0%N/A6 $6.84 12/30/20226,140,000 shares $43.23 million -4.5%N/A9.3 $7.04 12/15/20226,430,000 shares $43.60 million -0.3%N/A8.8 $6.78 11/30/20226,450,000 shares $50.37 million -2.3%N/A7.7 $7.81 11/15/20226,600,000 shares $52.93 million -7.3%N/A7.7 $8.02 10/31/20227,120,000 shares $53.51 million +10.9%N/A8.1 $7.52 10/15/20226,420,000 shares $53.61 million -13.0%N/A6.8 $8.35 9/30/20227,380,000 shares $63.54 million +3.4%N/A7.9 $8.61 9/15/20227,140,000 shares $70.19 million +2.3%N/A3.3 $9.83 8/31/20226,980,000 shares $71.75 million +0.4%N/A3.3 $10.28 8/15/20226,950,000 shares $74.71 million +24.3%N/A3.2 $10.75 7/31/20225,590,000 shares $54.61 million +4.1%N/A2.5 $9.77 7/15/20225,370,000 shares $55.15 million -7.3%N/A2.3 $10.27 6/30/20225,790,000 shares $47.88 million +29.0%N/A2.4 $8.27 6/15/20224,490,000 shares $21.46 million +4.4%N/A3.7 $4.78 5/31/20224,300,000 shares $21.72 million +19.4%N/A3.8 $5.05 5/15/20223,600,000 shares $20.70 million -14.7%N/A3.5 $5.75 4/30/20224,220,000 shares $50.13 million +13.4%8.9%5 $11.88 4/15/20223,720,000 shares $55.76 million -6.5%7.8%5.9 $14.99 3/31/20223,980,000 shares $66.15 million +5.9%8.3%6.3 $16.62 3/15/20223,760,000 shares $52.64 million +1.6%7.9%6.5 $14.00 2/28/20223,700,000 shares $54.95 million +5.1%7.8%7 $14.85 2/15/20223,520,000 shares $53.61 million -6.6%7.4%5.4 $15.23 1/31/20223,770,000 shares $49.69 million +1.9%8.3%2.4 $13.18 1/15/20223,700,000 shares $52.54 million +5.1%9.3%2.4 $14.20 12/31/20213,520,000 shares $58.85 million +7.7%8.9%2.4 $16.72 12/15/20213,270,000 shares $41.86 million -8.9%8.2%2.3 $12.80 11/30/20213,590,000 shares $49.76 million +99.4%9.1%2.7 $13.86 11/15/20211,800,000 shares $15.14 million -21.4%4.6%1.5 $8.41Market Panic: Trump Just Dropped a Bomb on Your Stocks (Ad)tock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tariffs just lit the fuse. Millions of investors are blindsided as stocks plunge… but this is only Phase 1. If you're still holding the wrong assets, you could lose 30% or more in the coming weeks.Don't wait for the next drop to wipe you out. Get the FREE Guide Before Markets Open Tomorrow 10/29/20212,290,000 shares $18.32 million +12.3%5.8%8.3 $8.00 10/15/20212,040,000 shares $17.83 million -1.9%5.2%7.3 $8.74 9/30/20212,080,000 shares $17.97 million +11.8%5.3%8 $8.64 9/15/20211,860,000 shares $16.91 million +8.1%4.7%7.1 $9.09 8/31/20211,720,000 shares $13.11 million -29.8%4.4%7.6 $7.62 8/13/20212,450,000 shares $14.38 million -4.3%6.2%14.1 $5.87 7/30/20212,560,000 shares $12.47 million -1.5%6.4%14.9 $4.87 7/15/20212,600,000 shares $13.47 million -0.8%6.6%13.2 $5.18 6/30/20212,620,000 shares $14.23 million -6.4%6.7%13 $5.43 6/15/20212,800,000 shares $15.79 million -5.1%7.1%10.2 $5.64 5/28/20212,950,000 shares $16.87 million -5.5%7.5%10.6 $5.72 5/14/20213,120,000 shares $16.07 million -8.0%N/A10.8 $5.15 4/30/20213,390,000 shares $19.42 million +0.3%N/A10.2 $5.73 4/15/20213,380,000 shares $20.85 million +65.7%N/A11.5 $6.17 3/31/20212,040,000 shares $12.10 million +4.1%N/A7 $5.93 3/15/20211,960,000 shares $13.33 million +11.4%N/A8.8 $6.80 2/26/20211,760,000 shares $9.77 million +4.8%N/A8.2 $5.55 2/12/20211,680,000 shares $10.18 million +43.6%N/A7.3 $6.06 1/29/20211,170,000 shares $6.34 million -2.5%N/A5.9 $5.42 1/15/20211,200,000 shares $6.84 million -36.5%N/A6.5 $5.70 12/31/20201,890,000 shares $10.09 million +17.4%N/A10.5 $5.34 12/15/20201,610,000 shares $8.90 million -5.9%N/A8.5 $5.53 11/30/20201,710,000 shares $10.16 million -6.0%N/A8.7 $5.94 11/15/20201,820,000 shares $10.06 million +6.4%N/A9.3 $5.53 10/30/20201,710,000 shares $9.15 million +11.8%N/A9.3 $5.35 10/15/20201,530,000 shares $8.26 million +2.0%N/A7.7 $5.40 9/30/20201,500,000 shares $7.26 million +7.9%N/A6.7 $4.84 9/15/20201,390,000 shares $6.82 million +10.3%N/A4.4 $4.91 8/31/20201,260,000 shares $6.12 million -2.3%N/A2.9 $4.86 KZR Short Interest - Frequently Asked Questions What is Kezar Life Sciences' current short interest? Short interest is the volume of Kezar Life Sciences shares that have been sold short but have not yet been covered or closed out. As of July 31st, investors have sold 588,600 shares of KZR short. 9.46% of Kezar Life Sciences' shares are currently sold short. Learn More on Kezar Life Sciences' current short interest. What is a good short interest ratio for Kezar Life Sciences? 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. KZR shares currently have a short interest ratio of 12.0. Learn More on Kezar Life Sciences's short interest ratio. What is a good short interest percentage for Kezar Life Sciences? 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. 9.46% of Kezar Life Sciences' floating shares are currently sold short. Is Kezar Life Sciences' short interest increasing or decreasing? Kezar Life Sciences saw a increase in short interest during the month of July. As of July 31st, there was short interest totaling 588,600 shares, an increase of 58.4% from the previous total of 371,700 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 Kezar Life Sciences' float size? Kezar Life Sciences currently has issued a total of 7,320,000 shares. Some of Kezar Life Sciences' 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. Kezar Life Sciences currently has a public float of 6,220,000 shares. How does Kezar Life Sciences' short interest compare to its competitors? 9.46% of Kezar Life Sciences' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Kezar Life Sciences: Immuneering Corporation (6.04%), Connect Biopharma Holdings Limited Sponsored ADR (0.08%), Inhibikase Therapeutics, Inc. (4.58%), Scilex Holding Company (8.76%), Skye Bioscience, Inc. (15.17%), Tenaya Therapeutics, Inc. (7.89%), Fate Therapeutics, Inc. (8.57%), Cassava Sciences, Inc. (13.40%), Zentalis Pharmaceuticals, Inc. (6.66%), HilleVax, Inc. (1.95%), 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 Kezar Life Sciences stock? Short selling KZR is an investing strategy that aims to generate trading profit from Kezar Life Sciences as its price is falling. KZR shares are trading up $0.02 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 Kezar Life Sciences? A short squeeze for Kezar Life Sciences 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 KZR, which in turn drives the price of the stock up even further. How often is Kezar Life Sciences' 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 KZR, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Immuneering Short Interest Data Connect Biopharma Short Interest Data Inhibikase Therapeutics Short Interest Data Scilex Short Interest Data Skye Bioscience Short Interest Data Tenaya Therapeutics Short Interest Data Fate Therapeutics Short Interest Data Cassava Sciences Short Interest Data Zentalis Pharmaceuticals Short Interest Data HilleVax 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:KZR) was last updated on 8/21/2025 by MarketBeat.com Staff From Our PartnersAlex’s “Next Magnificent Seven” stocksThe original “Magnificent Seven” turned $7K into $1.18 million. Now, Alex Green has identified AI’s Next Ma...The Oxford Club | SponsoredBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. Economist ...Goldco Precious Metals | SponsoredElon’s Secret Social Security BombshellTo All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...Banyan Hill Publishing | SponsoredINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredTrump set to Boost Social Security Checks by 400%?If you're collecting or planning to collect social security... You should see this presentation about Presi...InvestorPlace | SponsoredThe $7 company helping Nvidia build the world’s first trillion-dollar robot …Michael Robinson has been at the forefront of the technology market for over 40 years. Spotting some profit...Weiss Ratings | SponsoredCrypto Income (almost instantly)How would you like to collect a small percentage of the $4 billion changing hands daily in the crypto market? ...Awesomely, LLC | SponsoredCritical AI announcement set to ignite AI 2.0I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Kezar Life Sciences, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Kezar Life Sciences With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
MarketBeat All Access