Aurinia Pharmaceuticals (AUPH) Short Interest Ratio & Short Volume $8.63 -0.44 (-4.85%) Closing price 04:00 PM EasternExtended Trading$8.82 +0.18 (+2.14%) As of 07:07 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 InterestTrendsBuy This Stock Aurinia Pharmaceuticals Short Interest DataAurinia Pharmaceuticals (AUPH) has a short interest of 10.02 million shares, representing 8.39% of the float (the number of shares available for trading by the public). This marks a -4.84% decrease in short interest from the previous month. The short interest ratio (days to cover) is 6.9, indicating that it would take 6.9 days of the average trading volume of 1.41 million shares to cover all short positions.Current Short Interest10,020,000 sharesPrevious Short Interest10,530,000 sharesChange Vs. Previous Month-4.84%Dollar Volume Sold Short$84.87 millionShort Interest Ratio6.9 Days to CoverLast Record DateJune 30, 2025Outstanding Shares135,100,000 sharesFloat Size119,370,000 sharesShort Percent of Float8.39%Today's Trading Volume2,005,192 sharesAverage Trading Volume1,408,574 sharesToday's Volume Vs. Average142% Short Selling Aurinia Pharmaceuticals? Sign up to receive the latest short interest report for Aurinia Pharmaceuticals and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartAUPH Short Interest Over TimeAUPH Days to Cover Over TimeAUPH Percentage of Float Shorted Over Time Aurinia Pharmaceuticals Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/202510,020,000 shares $84.87 million -4.8%8.4%6.9 $8.47 6/15/202510,530,000 shares $86.14 million +0.3%8.8%8.7 $8.18 5/31/202510,500,000 shares $82.53 million -3.5%8.7%8.2 $7.86 5/15/202510,880,000 shares $88.67 million -3.3%9.1%7.5 $8.15 4/30/202511,250,000 shares $92.70 million +2.8%9.3%8.2 $8.24 4/15/202510,940,000 shares $84.79 million -4.8%9.0%8 $7.75 3/31/202511,490,000 shares $92.38 million +0.4%9.4%7.8 $8.04 3/15/202511,440,000 shares $93.35 million -0.6%9.4%8.1 $8.16 2/28/202511,510,000 shares $91.50 million +15.5%9.4%7.9 $7.95 2/15/20259,970,000 shares $77.67 million +6.2%7.3%7.5 $7.79 Get the Latest News and Ratings for AUPH and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Aurinia Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 1/31/20259,390,000 shares $74.65 million +25.5%N/A6.6 $7.95 1/15/20257,480,000 shares $57.52 million +29.2%N/A5.3 $7.69 12/31/20245,790,000 shares $51.99 million +4.7%N/A4.4 $8.98 12/15/20245,530,000 shares $51.82 million -11.1%N/A4.5 $9.37 11/30/20246,220,000 shares $55.11 million -9.6%N/A4.9 $8.86 11/15/20246,880,000 shares $55.87 million -6.3%N/A5.5 $8.12 10/31/20247,340,000 shares $52.92 million +2.1%N/A5.9 $7.21 10/15/20247,190,000 shares $51.77 million -0.7%N/A5.7 $7.20 9/30/20247,240,000 shares $53.07 million -4.5%N/A5.2 $7.33 9/15/20247,580,000 shares $53.29 million -13.0%N/A5.3 $7.03 8/31/20248,710,000 shares $59.32 million +2.7%N/A6.3 $6.81 8/15/20248,480,000 shares $47.40 million -13.8%N/A6.5 $5.59 7/31/20249,840,000 shares $57.86 million +13.1%N/A7.5 $5.88 7/15/20248,700,000 shares $49.33 million -15.7%N/A6.8 $5.67 6/30/202410,320,000 shares $58.93 million +1.4%N/A8.3 $5.71 6/15/202410,180,000 shares $57.52 million +10.5%N/A8 $5.65 5/31/20249,210,000 shares $49.92 million -20.1%N/A6.8 $5.42 5/15/202411,530,000 shares $61.22 million +12.4%N/A7.5 $5.31 4/30/202410,260,000 shares $52.22 million -9.9%8.1%5 $5.09 4/15/202411,390,000 shares $57.41 million -6.9%8.9%5.5 $5.04 3/31/202412,240,000 shares $61.32 million +14.9%9.6%5.2 $5.01 3/15/202410,650,000 shares $55.06 million -12.0%8.3%4.5 $5.17 2/29/202412,100,000 shares $69.21 million -28.2%9.5%4.9 $5.72 2/15/202416,850,000 shares $101.44 million -9.1%13.2%6.7 $6.02 1/31/202418,530,000 shares $139.72 million +13.1%N/A9.1 $7.54 1/15/202416,390,000 shares $126.86 million +5.3%N/A7.9 $7.74 12/31/202315,570,000 shares $139.97 million -4.6%N/A7.8 $8.99 12/15/202316,320,000 shares $153.24 million -4.6%N/A8.2 $9.39 11/30/202317,110,000 shares $147.83 million -0.5%N/A8.9 $8.64 11/15/202317,190,000 shares $140.27 million -0.5%N/A9.2 $8.16Trump’s biggest move, misreported (Ad)The media and financial pundits are all misreading Trump’s actions. They think Trump wants to make Canada the 51st state because he’s desperate for critical minerals… They think his involvement in Ukraine is just another resource grab… They think his tariffs will wreck the economy… But they’re all missing the bigger picture.This is fast becoming the world’s most sought-after resource. 10/31/202317,280,000 shares $126.84 million -0.9%N/A10 $7.34 10/15/202317,430,000 shares $131.07 million +2.4%N/A8.4 $7.52 9/30/202317,030,000 shares $132.32 million +0.1%N/A8 $7.77 9/15/202317,010,000 shares $150.37 million +21.9%N/A7.8 $8.84 8/31/202313,960,000 shares $126.62 million -16.4%N/A6.5 $9.07 8/15/202316,700,000 shares $159.99 million +5.6%N/A7.2 $9.58 7/31/202315,820,000 shares $183.20 million -5.3%N/A6.5 $11.58 7/15/202316,710,000 shares $185.82 million +6.8%N/A6.9 $11.12 6/30/202315,650,000 shares $151.49 million -1.2%N/A6.2 $9.68 6/15/202315,840,000 shares $157.29 million -5.2%N/A5.9 $9.93 5/31/202316,700,000 shares $149.63 million +7.6%N/A5.7 $8.96 5/15/202315,520,000 shares $168.86 million -7.1%N/A5 $10.88 4/30/202316,710,000 shares $187.99 million -3.1%13.1%5.5 $11.25 4/15/202317,250,000 shares $193.55 million -0.2%13.5%5.9 $11.22 3/31/202317,280,000 shares $189.39 million +5.5%N/A5.6 $10.96 3/15/202316,380,000 shares $155.61 million +9.5%N/A5.1 $9.50 2/28/202314,960,000 shares $135.99 million +18.1%N/A5.1 $9.09 2/15/202312,670,000 shares $99.33 million +14.9%N/A4.6 $7.84 1/31/202311,030,000 shares $99.82 million +48.9%N/A3.8 $9.05 1/15/20237,410,000 shares $67.51 million -2.0%N/A2.3 $9.11 12/30/20227,560,000 shares $32.66 million -10.0%N/A2.5 $4.32 12/15/20228,400,000 shares $38.05 million -4.6%N/A3.5 $4.53 11/30/20228,800,000 shares $45.14 million +6.2%N/A3.5 $5.13 11/15/20228,290,000 shares $42.69 million -27.7%N/A3.3 $5.15 10/31/202211,460,000 shares $93.17 million -4.0%N/A4.9 $8.13 10/15/202211,940,000 shares $87.64 million -4.5%N/A4.9 $7.34 9/30/202212,500,000 shares $94 million +4.5%N/A5.4 $7.52 9/15/202211,960,000 shares $90.66 million -4.6%N/A4.4 $7.58 8/31/202212,530,000 shares $92.22 million -6.1%N/A4.5 $7.36 8/15/202213,340,000 shares $115.12 million -2.5%N/A4.9 $8.63 7/31/202213,680,000 shares $111.90 million -1.2%N/A4.7 $8.18 7/15/202213,840,000 shares $145.18 million -3.0%N/A5.5 $10.49 6/30/202214,260,000 shares $143.31 million +48.4%11.7%5.8 $10.05 6/15/20229,610,000 shares $95.24 million -6.5%7.9%4.2 $9.91 5/31/202210,280,000 shares $115.96 million +7.5%8.3%4.8 $11.28 5/15/20229,560,000 shares $106.79 million -8.4%7.7%3.3 $11.17 4/30/202210,440,000 shares $107.43 million +3.0%8.3%3.6 $10.29 4/15/202210,140,000 shares $120.16 million +13.9%8.1%3.3 $11.85 3/31/20228,900,000 shares $110.18 million -0.1%7.2%2.7 $12.38 3/15/20228,910,000 shares $93.47 million -8.9%7.2%2.6 $10.49 2/28/20229,780,000 shares $120.29 million -10.8%7.9%2.7 $12.30 2/15/202210,960,000 shares $205.94 million +15.7%9.8%3.2 $18.79 1/31/20229,470,000 shares $157.77 million -18.2%8.7%2.5 $16.66 1/15/202211,570,000 shares $228.04 million +9.2%10.6%2.6 $19.71 12/31/202110,600,000 shares $242.42 million -7.7%9.4%2.4 $22.87 12/15/202111,480,000 shares $228.11 million +26.2%10.2%2.5 $19.87 11/30/20219,100,000 shares $171.44 million -14.7%8.1%1.9 $18.84 11/15/202110,670,000 shares $288.41 million -12.2%9.5%2.2 $27.03 10/29/202112,150,000 shares $401.92 million -29.1%11.4%2.8 $33.08 10/15/202117,130,000 shares $352.36 million -6.0%16.2%3.8 $20.57Trump’s biggest move, misreported (Ad)The media and financial pundits are all misreading Trump’s actions. They think Trump wants to make Canada the 51st state because he’s desperate for critical minerals… They think his involvement in Ukraine is just another resource grab… They think his tariffs will wreck the economy… But they’re all missing the bigger picture.This is fast becoming the world’s most sought-after resource. 9/30/202118,230,000 shares $403.43 million -2.4%17.3%4.3 $22.13 9/15/202118,670,000 shares $388.15 million +7.0%17.7%4.6 $20.79 8/31/202117,450,000 shares $284.09 million -0.9%16.5%4.8 $16.28 8/13/202117,600,000 shares $266.99 million +4.4%16.7%5 $15.17 7/30/202116,860,000 shares $228.62 million +26.3%16.0%4.3 $13.56 7/15/202113,350,000 shares $152.86 million +4.1%12.0%3.6 $11.45 6/30/202112,830,000 shares $166.28 million -4.1%11.5%3.5 $12.96 6/15/202113,380,000 shares $164.98 million +4.3%12.0%3.9 $12.33 5/28/202112,830,000 shares $186.29 million +27.4%11.5%3.5 $14.52 5/14/202110,070,000 shares $110.37 million +22.7%9.1%2.7 $10.96 4/30/20218,210,000 shares $99.18 million -3.8%7.4%2.2 $12.08 4/15/20218,530,000 shares $107.39 million +4.8%7.7%2.1 $12.59 3/31/20218,140,000 shares $102.08 million -0.5%7.4%1.8 $12.54 3/15/20218,180,000 shares $112.56 million +37.5%7.4%1.7 $13.76 2/26/20215,950,000 shares $86.75 million +9.4%5.4%1.3 $14.58 2/12/20215,440,000 shares $86.77 million +0.7%5.0%1.4 $15.95 1/29/20215,400,000 shares $92.23 million +20.8%5.2%1.5 $17.08 1/15/20214,470,000 shares $64.64 million -12.7%4.1%1.4 $14.46 12/31/20205,120,000 shares $71.48 million -1.9%4.7%2.9 $13.96 12/15/20205,220,000 shares $78.40 million -5.1%4.8%3.6 $15.02 11/30/20205,500,000 shares $80.19 million +7.4%5.0%5.3 $14.58 11/15/20205,120,000 shares $68.61 million +20.5%4.7%4.9 $13.40 10/30/20204,250,000 shares $68.09 million +9.8%3.9%4.2 $16.02 10/15/20203,870,000 shares $60.29 million -7.4%3.6%3.6 $15.58 9/30/20204,180,000 shares $61.57 million -2.3%3.9%2.8 $14.73 9/15/20204,280,000 shares $63.81 million -2.7%4.0%2.8 $14.91 8/31/20204,400,000 shares $65.25 million +6.0%4.1%2.9 $14.83 8/14/20204,150,000 shares $58.14 million -6.5%4.0%2.6 $14.01 7/31/20204,440,000 shares $62.74 million -3.1%5.1%2.9 $14.13 AUPH Short Interest - Frequently Asked Questions What is Aurinia Pharmaceuticals' current short interest? Short interest is the volume of Aurinia Pharmaceuticals shares that have been sold short but have not yet been covered or closed out. As of June 30th, investors have sold 10,020,000 shares of AUPH short. 8.39% of Aurinia Pharmaceuticals' shares are currently sold short. Learn More on Aurinia Pharmaceuticals' current short interest. What is a good short interest ratio for Aurinia Pharmaceuticals? 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. AUPH shares currently have a short interest ratio of 7.0. Learn More on Aurinia Pharmaceuticals's short interest ratio. Which institutional investors are shorting Aurinia Pharmaceuticals? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Aurinia Pharmaceuticals: Jane Street Group LLC, Caption Management LLC, Walleye Capital LLC, Simplex Trading LLC, and Jefferies Financial Group Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Aurinia Pharmaceuticals? 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. 8.39% of Aurinia Pharmaceuticals' floating shares are currently sold short. Is Aurinia Pharmaceuticals' short interest increasing or decreasing? Aurinia Pharmaceuticals saw a drop in short interest during the month of June. As of June 30th, there was short interest totaling 10,020,000 shares, a drop of 4.8% from the previous total of 10,530,000 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 Aurinia Pharmaceuticals' float size? Aurinia Pharmaceuticals currently has issued a total of 135,100,000 shares. Some of Aurinia Pharmaceuticals' 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. Aurinia Pharmaceuticals currently has a public float of 119,370,000 shares. How does Aurinia Pharmaceuticals' short interest compare to its competitors? 8.39% of Aurinia Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Aurinia Pharmaceuticals: Cytokinetics, Incorporated (12.86%), Zai Lab Limited Unsponsored ADR (1.31%), PTC Therapeutics, Inc. (8.01%), Ultragenyx Pharmaceutical Inc. (7.63%), Merus N.V. (7.78%), Arcellx, Inc. (15.52%), SpringWorks Therapeutics (9.19%), ACADIA Pharmaceuticals Inc. (10.43%), Avidity Biosciences, Inc. (14.43%), Scholar Rock Holding Corporation (17.26%), 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 ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks. What does it mean to sell short Aurinia Pharmaceuticals stock? Short selling AUPH is an investing strategy that aims to generate trading profit from Aurinia Pharmaceuticals as its price is falling. AUPH shares are trading down $0.44 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 Aurinia Pharmaceuticals? A short squeeze for Aurinia Pharmaceuticals 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 AUPH, which in turn drives the price of the stock up even further. How often is Aurinia Pharmaceuticals' 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 AUPH, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies CYTK Short Squeeze ZLAB Short Squeeze PTCT Short Squeeze RARE Short Squeeze MRUS Short Squeeze ACLX Short Squeeze SWTX Short Squeeze ACAD Short Squeeze RNA Short Squeeze SRRK Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:AUPH) was last updated on 7/18/2025 by MarketBeat.com Staff From Our PartnersCritical AI announcement set to ignite AI 2.0 I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | Sponsored[ATTENTION] This Crypto Rocket Is About Launch…Every crypto bull market ends with a final surge — the window where fortunes are made fast. 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