XOMA (XOMA) Short Interest Ratio & Short Volume $25.12 -1.48 (-5.56%) Closing price 05/21/2025 04:00 PM EasternExtended Trading$25.18 +0.05 (+0.22%) As of 05/21/2025 04:04 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock XOMA Short Interest DataXOMA (XOMA) has a short interest of 199,200 shares. This marks a 22.74% increase in short interest from the previous month. The short interest ratio (days to cover) is 7.7, indicating that it would take 7.7 days of the average trading volume of 30,710 shares to cover all short positions.Current Short Interest199,200 sharesPrevious Short Interest162,300 sharesChange Vs. Previous Month+22.74%Dollar Volume Sold Short$4.79 millionShort Interest Ratio7.7 Days to CoverLast Record DateApril 30, 2025Outstanding Shares11,967,000 sharesPercentage of Shares Shorted1.66%Today's Trading Volume51,390 sharesAverage Trading Volume30,710 sharesToday's Volume Vs. Average167% Short Selling XOMA? Sign up to receive the latest short interest report for XOMA and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartXOMA Short Interest Over TimeXOMA Days to Cover Over TimeXOMA Percentage of Float Shorted Over Time XOMA Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/2025199,200 shares $4.79 million +22.7%N/A7.7 $24.04 4/15/2025162,300 shares $3.38 million +8.9%1.5%4.5 $20.80 3/31/2025149,000 shares $2.97 million -7.6%1.4%3.7 $19.93 3/15/2025161,200 shares $3.29 million -7.8%1.5%3.9 $20.43 2/28/2025174,900 shares $3.97 million +1.9%1.6%4.3 $22.70 2/15/2025171,700 shares $4.59 million +7.5%1.6%4.2 $26.76 1/31/2025159,800 shares $4.25 million -8.0%N/A3.8 $26.61 1/15/2025173,700 shares $4.88 million +15.3%N/A4.2 $28.12 12/31/2024150,700 shares $3.96 million +8.4%N/A5.1 $26.28 12/15/2024139,000 shares $3.77 million +23.5%N/A4.8 $27.15 Get the Latest News and Ratings for XOMA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for XOMA and its competitors with MarketBeat's FREE daily newsletter. 11/30/2024112,600 shares $3.77 million -13.7%N/A4.1 $33.45 11/15/2024130,400 shares $3.94 million -24.8%N/A5 $30.21 10/31/2024173,300 shares $5.23 million -23.5%N/A7.8 $30.20 10/15/2024226,400 shares $6.50 million -7.5%N/A10.4 $28.70 9/30/2024244,800 shares $6.48 million +0.2%N/A10.4 $26.48 9/15/2024244,400 shares $7.08 million No ChangeN/A9.3 $28.98 8/31/2024244,400 shares $7.15 million -5.8%N/A9.6 $29.25 8/15/2024259,400 shares $7.22 million -3.6%N/A11.1 $27.82 7/31/2024269,200 shares $7.20 million -2.9%N/A12.2 $26.76 7/15/2024277,300 shares $7.48 million +14.5%N/A14.6 $26.97 6/30/2024242,100 shares $5.74 million -3.1%N/A14.3 $23.69 6/15/2024249,800 shares $6.31 million -6.6%N/A18.1 $25.28 5/31/2024267,500 shares $6.90 million +10.0%N/A18.8 $25.79 5/15/2024243,200 shares $6.01 million -10.4%N/A16 $24.71 4/30/2024271,400 shares $6.88 million -3.7%N/A15.7 $25.34 4/15/2024281,800 shares $6.86 million +2.7%N/A14.7 $24.34 3/31/2024274,400 shares $6.60 million -0.2%N/A12.9 $24.05 3/15/2024274,800 shares $7.23 million -5.8%N/A11.2 $26.32 2/29/2024291,600 shares $7.09 million -0.5%N/A11.2 $24.31 2/15/2024293,000 shares $6.50 million -8.6%N/A10.6 $22.18 1/31/2024320,700 shares $6.40 million +13.1%N/A12.1 $19.97 1/15/2024283,600 shares $5.72 million -2.1%N/A9.1 $20.16 12/31/2023289,700 shares $5.36 million +18.3%N/A9.3 $18.50 12/15/2023244,800 shares $3.86 million -18.6%N/A8.6 $15.75 11/30/2023300,700 shares $4.46 million -3.6%N/A11.7 $14.84 11/15/2023311,800 shares $4.95 million -24.3%N/A12.7 $15.86 10/31/2023411,600 shares $7.76 million -14.2%N/A17.5 $18.85 10/15/2023479,500 shares $7.96 million -8.6%N/A23.2 $16.61 9/30/2023524,500 shares $7.39 million -17.7%N/A26.2 $14.09 9/15/2023637,500 shares $11.29 million -5.5%N/A26.8 $17.71The Prophet's Newest Prediction (Ad)A storm is brewing in the markets: new tariffs, recession warnings, and panic in the headlines. 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Hear Tilson’s take now 8/31/2023674,600 shares $9.46 million +8.6%N/A16.4 $14.02 8/15/2023621,000 shares $9.62 million -19.1%N/A13.5 $15.49 7/31/2023767,700 shares $12.09 million -2.9%N/A15.6 $15.75 7/15/2023790,800 shares $13.09 million -1.1%N/A15.6 $16.55 6/30/2023799,500 shares $15.10 million +27.0%N/A15.8 $18.89 6/15/2023629,800 shares $10.80 million +5.1%N/A12.5 $17.15 5/31/2023599,500 shares $10.19 million +5.1%N/A18.6 $17.00 5/15/2023570,400 shares $11.44 million +1.9%N/A19.9 $20.06 4/30/2023560,000 shares $10.30 million -0.7%N/A19 $18.39 4/15/2023563,800 shares $11.09 million +9.0%N/A18.6 $19.67 3/31/2023517,200 shares $10.92 million +10.7%N/A16.6 $21.11 3/15/2023467,200 shares $9.50 million +6.6%N/A15.6 $20.33 2/28/2023438,500 shares $9.33 million +2.8%N/A14.8 $21.28 2/15/2023426,400 shares $9.04 million +1.9%N/A14.8 $21.20 1/31/2023418,300 shares $8.49 million -1.3%N/A15.3 $20.29 1/15/2023423,700 shares $9.52 million +13.8%N/A19.3 $22.47 12/30/2022372,200 shares $6.85 million +11.0%N/A17 $18.40 12/15/2022335,300 shares $6.33 million -3.8%N/A18.9 $18.89 11/30/2022348,500 shares $7.38 million -1.0%N/A15.2 $21.17 11/15/2022351,900 shares $6.44 million +1.1%N/A14.4 $18.29 10/31/2022348,200 shares $5.77 million -2.2%N/A12.7 $16.56 10/15/2022356,000 shares $5.97 million -3.6%N/A11.8 $16.78 9/30/2022369,400 shares $6.62 million -3.4%N/A11.1 $17.91 9/15/2022382,500 shares $6.99 million +5.0%N/A7.4 $18.27 8/31/2022364,200 shares $7.24 million +23.5%N/A7.2 $19.88 8/15/2022294,900 shares $5.61 million +1.3%N/A5.5 $19.03 7/31/2022291,200 shares $6.84 million -13.2%3.8%5.3 $23.50 7/15/2022335,300 shares $9.91 million -3.3%4.3%5.9 $29.56 6/30/2022346,700 shares $7.72 million -27.3%4.5%6.4 $22.28 6/15/2022477,100 shares $8.35 million +4.2%6.2%9.4 $17.51 5/31/2022458,000 shares $8.34 million +10.0%N/A12.3 $18.21 5/15/2022416,400 shares $7.17 million +10.9%N/A12.1 $17.21 4/30/2022375,600 shares $7.22 million +0.3%N/A12.5 $19.23 4/15/2022374,500 shares $9.07 million -3.2%N/A14.3 $24.21 3/31/2022386,900 shares $10.83 million -19.9%3.4%14 $27.98 3/15/2022483,200 shares $12.64 million -5.9%4.3%17.7 $26.15 2/28/2022513,200 shares $11.25 million -2.4%4.8%20.6 $21.93 2/15/2022525,800 shares $10.57 million +3.7%4.9%22.1 $20.11 1/31/2022507,100 shares $10.51 million +2.2%4.7%22.9 $20.72 1/15/2022496,200 shares $11.08 million +2.3%4.6%23 $22.32 12/31/2021485,000 shares $10.11 million +36.4%4.5%24.7 $20.85 12/15/2021355,700 shares $7.49 million +13.7%3.3%17.5 $21.05 11/30/2021312,900 shares $6.42 million +6.9%2.9%14.8 $20.51 11/15/2021292,700 shares $7.67 million -6.6%2.7%12.5 $26.21 10/29/2021313,500 shares $7.84 million +1.4%2.9%12.9 $25.00 10/15/2021309,200 shares $7.97 million -16.0%2.9%12.5 $25.79 9/30/2021368,100 shares $9.11 million -3.6%3.4%15.1 $24.75 9/15/2021381,900 shares $9.29 million +0.0%3.6%13.7 $24.32 8/31/2021381,800 shares $11.88 million +6.3%3.6%13.8 $31.12 8/13/2021359,100 shares $10.60 million -4.3%3.4%14.5 $29.52A grave, grave error. 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Here’s the full story for you. 7/30/2021375,200 shares $12.16 million +3.4%3.5%15 $32.40 7/15/2021362,900 shares $11.71 million +7.1%3.4%12.9 $32.28 6/30/2021338,900 shares $11.52 million -5.3%3.2%11.4 $34.00 6/15/2021358,000 shares $10.99 million +4.3%3.4%7 $30.71 5/28/2021343,400 shares $10.12 million +6.6%3.2%6.4 $29.47 5/14/2021322,300 shares $9.44 million -2.7%N/A6 $29.29 4/30/2021331,100 shares $12.25 million +0.7%N/A5.9 $36.99 4/15/2021328,800 shares $12.28 million -21.6%N/A5.6 $37.35 3/31/2021419,200 shares $16.77 million +27.5%N/A7.2 $40.00 3/15/2021328,900 shares $13.46 million -2.1%N/A8.3 $40.91 2/26/2021335,800 shares $12.16 million +6.1%N/A7.9 $36.20 2/12/2021316,600 shares $12.28 million -37.7%N/A7.2 $38.78 1/29/2021508,500 shares $19.22 million +1.1%N/A11.4 $37.79 1/15/2021503,100 shares $20.11 million -3.3%N/A11.7 $39.98 12/31/2020520,200 shares $23.17 million +17.8%N/A12.5 $44.54 12/15/2020441,800 shares $18.01 million -20.9%N/A11 $40.76 11/30/2020558,800 shares $17.91 million -5.6%N/A16.8 $32.05 10/30/2020583,600 shares $14.55 million -5.9%N/A17.7 $24.93 10/15/2020619,900 shares $12.47 million -10.1%N/A18.8 $20.12 9/30/2020689,200 shares $12.98 million -0.1%N/A19.1 $18.84 9/15/2020689,900 shares $14.32 million 0.0%N/A12.7 $20.76 8/31/2020690,000 shares $13.12 million -2.0%N/A12.6 $19.02 8/14/2020704,300 shares $13.61 million +0.5%N/A12.8 $19.32 7/31/2020700,600 shares $11.70 million +1.9%N/A12.3 $16.70 7/15/2020687,300 shares $12.18 million +26.4%N/A11.9 $17.72 6/30/2020543,700 shares $10.74 million +42.1%N/A9.5 $19.76 6/15/2020382,600 shares $8.11 million +1.2%N/A8.4 $21.21 5/29/2020378,000 shares $8.03 million +5.0%N/A7.5 $21.24 XOMA Short Interest - Frequently Asked Questions What is XOMA's current short interest? Short interest is the volume of XOMA shares that have been sold short but have not yet been covered or closed out. As of April 30th, traders have sold 199,200 shares of XOMA short. Learn More on XOMA's current short interest. What is a good short interest ratio for XOMA? 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. XOMA shares currently have a short interest ratio of 8.0. Learn More on XOMA's short interest ratio. Is XOMA's short interest increasing or decreasing? XOMA saw a increase in short interest during the month of April. As of April 30th, there was short interest totaling 199,200 shares, an increase of 22.7% from the previous total of 162,300 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 XOMA's short interest compare to its competitors? Here is how the short interest of companies in the industry of "biotechnology" compare to XOMA: Dynavax Technologies Co. (17.13%), Innoviva, Inc. (14.00%), Novavax, Inc. (26.13%), OPKO Health, Inc. (9.74%), Geron Co. (10.03%), Regulus Therapeutics Inc. (4.94%), Myriad Genetics, Inc. (6.06%), Verastem, Inc. (20.42%), Rigel Pharmaceuticals, Inc. (10.64%), Emergent BioSolutions Inc. (14.92%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 billion). View all of the most shorted stocks. What does it mean to sell short XOMA stock? Short selling XOMA is an investing strategy that aims to generate trading profit from XOMA as its price is falling. XOMA shares are trading down $1.48 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 XOMA? A short squeeze for XOMA 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 XOMA, which in turn drives the price of the stock up even further. How often is XOMA'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 XOMA, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies Dynavax Technologies Short Interest Innoviva Short Interest Novavax Short Interest OPKO Health Short Interest Geron Short Interest Regulus Therapeutics Short Interest Myriad Genetics Short Interest Verastem Short Interest Rigel Pharmaceuticals Short Interest Emergent BioSolutions 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:XOMA) was last updated on 5/22/2025 by MarketBeat.com Staff From Our PartnersWarning: Prepare to Be Shocked by These PayoutsThere's a strategy out there paying up to 70% on tech stocks like Amazon, Tesla, and Microsoft—stocks that don...Investors Alley | SponsoredThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history.Paradigm Press | SponsoredThe Prophet's Newest PredictionA storm is brewing in the markets: new tariffs, recession warnings, and panic in the headlines. 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