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ALX Oncology (ALXO) Short Interest Ratio & Short Volume

ALX Oncology logo
$1.31 -0.05 (-3.32%)
Closing price 09/25/2026 04:00 PM Eastern
Extended Trading
$1.36 +0.04 (+3.44%)
As of 09/25/2026 07:58 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 Massive. Learn more.
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ALX Oncology Short Interest Overview

As of September 15, 2026, ALX Oncology (ALXO) had a short interest of 6.27 million shares sold short, representing 5.18% of the public float. This marks a -11.20% decrease in short interest since the prior report. The short interest ratio (days to cover) is 7.8, meaning it would take 7.8 days of the average trading volume of 975,919 shares to cover all short positions.

Current Short Interest
6,273,652 shares
Previous Short Interest
7,064,802 shares
Change Vs. Previous Month
-11.20%
Dollar Volume Sold Short
$11.86 million
Short Interest Ratio
7.8 Days to Cover
Last Record Date
September 15, 2026
Outstanding Shares
138,280,000 shares
Short Percent of Float
5.18%
Today's Trading Volume
1,165,753 shares
Average Trading Volume
975,919 shares
Today's Volume Vs. Average
119%
Short Selling ALX Oncology?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

ALXO Short Interest Over Time

ALXO Days to Cover Over Time

ALXO Percentage of Float Shorted Over Time

ALX Oncology Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
9/15/20266,273,652 shares $11.86 million -11.2%5.2%7.79 $1.89
8/31/20267,064,802 shares $13.64 million -7.2%5.8%12.28 $1.93
8/14/20267,612,189 shares $14.92 million -1.4%6.3%4.84 $1.96
7/31/20267,718,258 shares $14.97 million +3.5%6.5%13.28 $1.94
7/15/20267,460,211 shares $15.14 million +18.1%7.0%6.59 $2.03
6/30/20266,318,290 shares $13.08 million +144.0%5.9%2.06 $2.07
6/15/20262,589,032 shares $4.09 million +51.8%2.4%2.64 $1.58
5/29/20261,705,895 shares $3.24 million +23.6%1.6%1.33 $1.90
5/15/20261,380,136 shares $2.80 million -37.5%1.3%1.93 $2.03
4/30/20262,206,868 shares $3.75 million +7.9%2.1%1.87 $1.70
4/15/20262,045,874 shares $3.44 million -8.0%1.9%1.72 $1.68
3/31/20262,222,798 shares $4.46 million +81.7%2.1%2.89 $2.01
3/13/20261,223,050 shares $2.42 million +4.3%1.2%2.38 $1.98
2/27/20261,172,124 shares $2.47 million -0.2%1.1%1.21 $2.11
2/13/20261,174,673 shares $2.60 million +3.5%1.1%1.08 $2.21
1/30/20261,135,216 shares $1.98 million +4.5%2.7%2.75 $1.74
1/15/20261,086,386 shares $1.31 million +10.3%2.5%3.97 $1.21
12/31/2025985,188 shares $1.11 million -6.0%2.3%6.74 $1.13
12/15/20251,047,613 shares $1.47 million +32.0%2.4%4.92 $1.40
11/28/2025793,867 shares $1.09 million -55.4%1.9%3.36 $1.37
11/14/20251,780,683 shares $2.46 million -3.5%4.2%3.91 $1.38
10/31/20251,844,412 shares $2.84 million -0.9%4.4%5.41 $1.54
10/15/20251,860,000 shares $3.09 million +38.8%5.0%1.9 $1.66
9/30/20251,340,000 shares $2.45 million -15.2%3.6%1.4 $1.83
9/15/20251,580,000 shares $1.66 million -13.2%4.2%1.6 $1.05
8/31/20251,820,000 shares $2.13 million +11.7%4.9%2 $1.17
8/15/20251,630,000 shares $1.05 million -63.6%4.4%1.8 $0.64
7/31/20254,480,000 shares $2.54 million +2.1%12.2%8.3 $0.57
7/15/20254,390,000 shares $2.05 million -9.9%11.9%8.5 $0.47
6/30/20254,870,000 shares $2.02 million -10.5%14.4%9.2 $0.42
6/15/20255,440,000 shares $2.79 million -4.4%16.1%11.7 $0.51
5/31/20255,690,000 shares $2.76 million -2.4%16.8%10.9 $0.49
5/15/20255,830,000 shares $2.54 million -3.6%17.3%7.5 $0.44
4/30/20256,050,000 shares $3.27 million -1.5%17.8%7.6 $0.54
4/15/20256,140,000 shares $3.35 million -2.5%18.1%6.4 $0.55
3/31/20256,300,000 shares $3.92 million -1.4%18.5%6.2 $0.62
3/15/20256,390,000 shares $5.30 million +8.5%18.8%5.5 $0.83
2/28/20255,890,000 shares $6.48 million -8.7%17.3%4.6 $1.10
2/15/20256,450,000 shares $7.10 million +7.7%19.2%6.1 $1.10
1/31/20255,990,000 shares $8.75 million -23.5%19.5%5.3 $1.46
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1/15/20257,830,000 shares $12.76 million +3.0%25.4%6.9 $1.63
12/31/20247,600,000 shares $12.69 million -9.4%24.6%7.7 $1.67
12/15/20248,390,000 shares $12.17 million +17.0%24.4%9 $1.45
11/30/20247,170,000 shares $10.61 million -0.8%20.9%9.7 $1.48
11/15/20247,230,000 shares $9.33 million -7.8%21.1%10.6 $1.29
10/31/20247,840,000 shares $11.21 million -18.3%25.9%11.2 $1.43
10/15/20249,590,000 shares $14.96 million +2.9%31.7%8.8 $1.56
9/30/20249,320,000 shares $16.96 million -6.7%30.9%8.1 $1.82
9/15/20249,990,000 shares $22.18 million +0.1%33.1%8 $2.22
8/31/20249,980,000 shares $23.15 million +7.5%33.0%7.8 $2.32
8/15/20249,280,000 shares $24.59 million +2.2%31.0%6.7 $2.65
7/31/20249,080,000 shares $43.58 million +17.2%30.5%7.1 $4.80
7/15/20247,750,000 shares $62 million +40.7%26.0%9.1 $8.00
6/30/20245,510,000 shares $33.23 million +30.0%18.5%6.8 $6.03
6/15/20244,240,000 shares $34.13 million +45.7%14.2%5.8 $8.05
5/31/20242,910,000 shares $30.93 million -13.4%10.0%4.3 $10.63
5/15/20243,360,000 shares $50.47 million +6.3%11.6%6.2 $15.02
4/30/20243,160,000 shares $53.78 million -14.4%11.5%6.1 $17.02
4/15/20243,690,000 shares $47.56 million +18.3%13.5%8 $12.89
3/31/20243,120,000 shares $34.79 million +7.2%11.5%8 $11.15
3/15/20242,910,000 shares $32.88 million -16.4%10.7%7.7 $11.30
2/29/20243,480,000 shares $51.05 million -1.4%12.9%7.5 $14.67
2/15/20243,530,000 shares $59.27 million -2.5%13.1%7.8 $16.79
1/31/20243,620,000 shares $52.16 million -1.9%13.2%8 $14.41
1/15/20243,690,000 shares $52.91 million -2.1%13.5%8.2 $14.34
12/31/20233,770,000 shares $56.14 million -6.7%13.8%6.5 $14.89
12/15/20234,040,000 shares $54.74 million +3.1%14.8%2.9 $13.55
11/30/20233,920,000 shares $30.73 million +0.5%17.6%2.9 $7.84
11/15/20233,900,000 shares $34.20 million +2.1%17.5%3.1 $8.77
10/31/20233,820,000 shares $27.50 million -2.1%20.8%3.2 $7.20
10/15/20233,900,000 shares $35.61 million +46.1%21.2%3.3 $9.13
9/30/20232,670,000 shares $12.82 million -11.9%14.5%2.4 $4.80
9/15/20233,030,000 shares $15.70 million -4.1%16.5%19.1 $5.18
8/31/20233,160,000 shares $13.46 million +5.0%17.2%16.6 $4.26
8/15/20233,010,000 shares $14.63 million +2.0%16.5%14.9 $4.86
7/31/20232,950,000 shares $18.02 million +1.0%16.5%14.1 $6.11
7/15/20232,920,000 shares $19.77 million -0.3%16.2%11.2 $6.77
6/30/20232,930,000 shares $22.00 million No Change16.2%9.9 $7.51
6/15/20232,930,000 shares $28.01 million No Change16.2%9.9 $9.56
5/31/20232,930,000 shares $19.54 million +2.1%16.1%9.3 $6.67
5/15/20232,870,000 shares $18.54 million -4.3%16.3%9.8 $6.46
4/30/20233,000,000 shares $17.82 million -23.9%17.0%10.6 $5.94
4/15/20233,940,000 shares $18.91 million +3.4%22.3%15.4 $4.80
3/31/20233,810,000 shares $17.22 million -4.3%21.7%16.9 $4.52
3/15/20233,980,000 shares $20.66 million +3.7%22.6%17.2 $5.19
2/28/20233,840,000 shares $25.42 million +5.2%21.9%22.1 $6.62
2/15/20233,650,000 shares $28.32 million -5.7%20.8%22.2 $7.76
1/31/20233,870,000 shares $35.99 million -4.4%22.1%22.1 $9.30
1/15/20234,050,000 shares $40.54 million -2.4%23.1%22.8 $10.01
12/30/20224,150,000 shares $46.77 million +0.2%23.7%24.3 $11.27
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12/15/20224,140,000 shares $43.72 million -3.0%23.6%29.1 $10.56
11/30/20224,270,000 shares $47.40 million No Change24.3%29.3 $11.10
11/15/20224,270,000 shares $49.53 million -1.8%24.3%26.3 $11.60
10/31/20224,350,000 shares $52.81 million -1.1%23.9%25.5 $12.14
10/15/20224,400,000 shares $48.36 million -3.5%24.1%23.9 $10.99
9/30/20224,560,000 shares $43.64 million No Change25.0%22.6 $9.57
9/15/20224,560,000 shares $57.64 million +6.5%25.0%18.6 $12.64
8/31/20224,280,000 shares $55.64 million +11.8%23.5%11.8 $13.00
8/15/20223,830,000 shares $57.99 million -5.9%21.0%9.4 $15.14
7/31/20224,070,000 shares $39.40 million +4.1%20.5%8.9 $9.68
7/15/20223,910,000 shares $40.51 million -3.5%19.7%8.3 $10.36
6/30/20224,050,000 shares $32.76 million -12.3%20.4%8.7 $8.09
6/15/20224,620,000 shares $30.82 million +5.0%23.2%9.6 $6.67
5/31/20224,400,000 shares $33.75 million +10.6%22.1%11.5 $7.67
5/15/20223,980,000 shares $38.45 million +8.2%20.0%10.6 $9.66
4/30/20223,680,000 shares $47.03 million -6.4%17.9%9.5 $12.78
4/15/20223,930,000 shares $62.92 million -10.9%19.2%8.7 $16.01
3/31/20224,410,000 shares $74.53 million +7.3%21.6%8.7 $16.90
3/15/20224,110,000 shares $68.23 million +3.8%20.1%8.2 $16.60
2/28/20223,960,000 shares $71.76 million -9.2%19.4%6.9 $18.12
2/15/20224,360,000 shares $68.41 million +10.9%21.4%7.4 $15.69
1/31/20223,930,000 shares $62.88 million -11.7%19.6%6.8 $16.00
1/15/20224,450,000 shares $82.33 million +0.9%22.1%9.1 $18.50
12/31/20214,410,000 shares $94.77 million +16.4%21.9%10.6 $21.49
12/15/20213,790,000 shares $93.84 million +11.8%18.8%9.8 $24.76
11/30/20213,390,000 shares $109.02 million +0.6%17.0%11.7 $32.16
11/15/20213,370,000 shares $156.33 million +59.0%16.9%13.6 $46.39
10/29/20212,120,000 shares $118.80 million -8.6%10.8%8.6 $56.04
10/15/20212,320,000 shares $136.86 million +1.3%11.8%9.1 $58.99
9/30/20212,290,000 shares $169.14 million -6.9%11.6%8.7 $73.86

ALXO Short Interest - Frequently Asked Questions

Short interest is the volume of ALX Oncology shares that have been sold short but have not yet been closed out or covered. As of September 15th, investors have sold 6,273,652 shares of ALXO short. 5.18% of ALX Oncology's shares are currently sold short. Learn More on ALX Oncology's current short interest.

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. ALXO shares currently have a short interest ratio of 7.8. Learn More on ALX Oncology's short interest ratio.

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. 5.18% of ALX Oncology's floating shares are currently sold short.

ALX Oncology saw a decline in short interest in the month of September. As of September 15th, there was short interest totaling 6,273,652 shares, a decline of 11.2% from the previous total of 7,064,802 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.

5.18% of ALX Oncology's shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to ALX Oncology: Lexicon Pharmaceuticals, Inc. (7.52%), Avalo Therapeutics, Inc. (25.23%), Immix Biopharma, Inc. (19.30%), Rigel Pharmaceuticals, Inc. (19.27%), Candel Therapeutics, Inc. (18.82%), 4D Molecular Therapeutics, Inc. (23.60%), Olema Pharmaceuticals, Inc. (21.00%), WAVE Life Sciences Ltd. (11.82%), Geron Corporation (13.08%), Sensei Biotherapeutics, Inc. (5.49%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.21 billion), Invesco QQQ ($46.31 billion), iShares Russell 2000 ETF ($27.98 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($9.70 billion), Canadian Natural Resources Limited ($9.42 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($8.53 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.79 billion), and Financial Select Sector SPDR Fund ($7.74 billion). View all of the most shorted stocks.

Short selling ALXO is an investing strategy that aims to generate trading profit from ALX Oncology as its price is falling. ALXO shares are trading down $0.05 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.

A short squeeze for ALX Oncology 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 ALXO, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including ALXO, twice per month. The most recent reporting period available is September, 15 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like ALXO:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


Related Companies
Short Interest Tools

Short interest data for NASDAQ:ALXO is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 9/24/2026. FINRA publishes updated short interest twice a month.
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