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Accuray (ARAY) Short Interest Ratio & Short Volume

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$1.69 +0.04 (+2.42%)
Closing price 10/3/2025 04:00 PM Eastern
Extended Trading
$1.68 -0.01 (-0.89%)
As of 10/3/2025 06:54 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.

Accuray Short Interest Data

Accuray (ARAY) has a short interest of 3.06 million shares. This marks a 37.84% increase in short interest from the previous month. The short interest ratio (days to cover) is 3.8, indicating that it would take 3.8 days of the average trading volume of 752,038 shares to cover all short positions.

Current Short Interest
3,060,000 shares
Previous Short Interest
2,220,000 shares
Change Vs. Previous Month
+37.84%
Dollar Volume Sold Short
$4.93 million
Short Interest Ratio
3.8 Days to Cover
Last Record Date
September 15, 2025
Outstanding Shares
112,720,000 shares
Percentage of Shares Shorted
2.71%
Today's Trading Volume
464,785 shares
Average Trading Volume
752,038 shares
Today's Volume Vs. Average
62%
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Skip Charts & View Short Interest History

ARAY Short Interest Over Time

ARAY Days to Cover Over Time

ARAY Percentage of Float Shorted Over Time

Accuray Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
9/15/20253,060,000 shares $4.93 million +37.8%N/A3.8 $1.61
8/31/20252,220,000 shares $3.37 million -5.1%2.1%2.8 $1.52
8/15/20252,340,000 shares $3.28 million -3.7%N/A2.6 $1.40
7/31/20252,430,000 shares $3.18 million -14.1%2.3%2.9 $1.31
7/15/20252,830,000 shares $3.76 million -2.1%N/A3.2 $1.33
6/30/20252,890,000 shares $3.96 million +14.7%2.9%3.3 $1.37
6/15/20252,520,000 shares $3.07 million -41.0%2.6%3.1 $1.22
5/31/20254,270,000 shares $6.62 million -6.2%4.3%5.8 $1.55
5/15/20254,550,000 shares $7.23 million +9.1%4.6%7.4 $1.59
4/30/20254,170,000 shares $6.46 million +5.6%N/A6.1 $1.55
4/15/20253,950,000 shares $5.93 million -8.4%4.0%6.2 $1.50
3/31/20254,310,000 shares $7.71 million -4.9%4.4%6.3 $1.79
3/15/20254,530,000 shares $8.29 million +5.4%4.6%6.8 $1.83
2/28/20254,300,000 shares $8.64 million +2.6%4.4%6 $2.01
2/15/20254,190,000 shares $9.34 million -6.9%4.3%5.7 $2.23
1/31/20254,500,000 shares $10.04 million +11.7%N/A6.1 $2.23
1/15/20254,030,000 shares $9.27 million No ChangeN/A6.1 $2.30
12/31/20244,030,000 shares $7.98 million +12.3%N/A6.5 $1.98
12/15/20243,590,000 shares $6.89 million +4.4%N/A5.9 $1.92
11/30/20243,440,000 shares $7.67 million -4.4%N/A5.3 $2.23
11/15/20243,600,000 shares $6.12 million -8.6%N/A5.7 $1.70
10/31/20243,940,000 shares $6.82 million -2.0%N/A4.2 $1.73
10/15/20244,020,000 shares $7.52 million +2.0%N/A4.4 $1.87
9/30/20243,940,000 shares $7.09 million -3.2%N/A4.3 $1.80
9/15/20244,070,000 shares $8.91 million -2.9%N/A4.5 $2.19
8/31/20244,190,000 shares $9.13 million -19.6%N/A4.9 $2.18
8/15/20245,210,000 shares $11.31 million +7.9%N/A6.1 $2.17
7/31/20244,830,000 shares $8.89 million -10.9%N/A8.4 $1.84
7/15/20245,420,000 shares $10.41 million -10.3%N/A8 $1.92
6/30/20246,040,000 shares $10.99 million +7.3%N/A9.1 $1.82
6/15/20245,630,000 shares $9.74 million -1.6%N/A8.5 $1.73
5/31/20245,720,000 shares $10.12 million -4.0%N/A8.9 $1.77
5/15/20245,960,000 shares $10.07 million +6.1%N/A9.4 $1.69
4/30/20245,620,000 shares $11.97 million +3.3%N/A9.6 $2.13
4/15/20245,440,000 shares $12.57 million +3.2%N/A11.4 $2.31
3/31/20245,270,000 shares $13.02 million -2.8%N/A12.3 $2.47
3/15/20245,420,000 shares $14.15 million +5.9%N/A13 $2.61
2/29/20245,120,000 shares $13.31 million -1.9%N/A12.1 $2.60
2/15/20245,220,000 shares $14.82 million -2.4%N/A12.7 $2.84
1/31/20245,350,000 shares $13.86 million -2.6%5.9%12.6 $2.59
1/15/20245,490,000 shares $15.54 million -2.7%6.0%14.4 $2.83
12/31/20235,640,000 shares $15.96 million +2.0%6.2%14.7 $2.83
12/15/20235,530,000 shares $14.77 million -1.1%6.1%13.8 $2.67
11/30/20235,590,000 shares $14.59 million +0.2%6.2%14.4 $2.61
11/15/20235,580,000 shares $14.17 million -5.1%6.1%14.5 $2.54
10/31/20235,880,000 shares $15.52 million -2.2%6.5%12.1 $2.64
10/15/20236,010,000 shares $17.07 million -0.7%6.6%11.7 $2.84
9/30/20236,050,000 shares $16.46 million -2.1%6.7%11.6 $2.72
9/15/20236,180,000 shares $16.87 million -0.8%6.8%8.4 $2.73
8/31/20236,230,000 shares $17.76 million -10.9%6.9%7.7 $2.85
8/15/20236,990,000 shares $21.53 million -3.7%7.8%8.8 $3.08
7/31/20237,260,000 shares $30.93 million +0.6%8.1%10.2 $4.26
7/15/20237,220,000 shares $27.44 million -1.2%8.1%10.4 $3.80
6/30/20237,310,000 shares $28.29 million +40.9%8.1%10.3 $3.87
6/15/20235,190,000 shares $20.34 million +3.6%5.7%7.8 $3.92
5/31/20235,010,000 shares $18.49 million +2.7%5.5%12.8 $3.69
5/15/20234,880,000 shares $17.62 million +1.9%5.4%13 $3.61
4/30/20234,790,000 shares $16.00 million +4.8%5.3%12.5 $3.34
4/15/20234,570,000 shares $13.71 million -0.4%5.1%12.5 $3.00
3/31/20234,590,000 shares $13.63 million -2.6%5.1%13.4 $2.97
3/15/20234,710,000 shares $12.81 million +3.3%5.3%14.3 $2.72
2/28/20234,560,000 shares $13.22 million -5.8%5.1%12.9 $2.90
2/15/20234,840,000 shares $15.29 million +0.4%5.4%13.3 $3.16
1/31/20234,820,000 shares $12.15 million -0.6%5.4%13.3 $2.52
1/15/20234,850,000 shares $11.54 million -1.0%5.5%14.1 $2.38
12/30/20224,900,000 shares $10.24 million -1.8%5.6%14.1 $2.09
12/15/20224,990,000 shares $9.48 million +1.8%5.7%13.5 $1.90
11/30/20224,900,000 shares $10.05 million -3.0%5.5%12.4 $2.05
11/15/20225,050,000 shares $11.67 million -1.2%5.7%12.3 $2.31
10/31/20225,110,000 shares $10.42 million +1.6%5.8%10.7 $2.04
10/15/20225,030,000 shares $9.46 million -3.1%5.7%10.3 $1.88
9/30/20225,190,000 shares $10.80 million +6.4%5.9%10.1 $2.08
9/15/20224,880,000 shares $10.64 million +1.5%5.5%6.2 $2.18
8/31/20224,810,000 shares $11.45 million +1.1%5.4%5.2 $2.38
8/15/20224,760,000 shares $14.14 million -5.4%5.4%4.5 $2.97
7/31/20225,030,000 shares $10.56 million +4.6%5.7%4.3 $2.10
7/15/20224,810,000 shares $9.76 million -5.7%5.4%3.9 $2.03
6/30/20225,100,000 shares $10.00 million -38.3%5.8%4.2 $1.96
6/15/20228,270,000 shares $15.63 million +13.9%9.8%7.1 $1.89
5/31/20227,260,000 shares $15.10 million +5.8%8.3%8.4 $2.08
5/15/20226,860,000 shares $15.85 million +19.5%7.8%9 $2.31
4/30/20225,740,000 shares $15.27 million +0.5%6.5%8.6 $2.66
4/15/20225,710,000 shares $18.67 million -1.9%6.5%7.8 $3.27
3/31/20225,820,000 shares $19.26 million -0.7%6.6%7.6 $3.31
3/15/20225,860,000 shares $19.57 million -1.2%6.7%7.5 $3.34
2/28/20225,930,000 shares $20.58 million +1.7%6.7%7.1 $3.47
2/15/20225,830,000 shares $22.33 million -17.8%6.6%6.5 $3.83
1/31/20227,090,000 shares $25.88 million +6.3%8.1%6.8 $3.65
1/15/20226,670,000 shares $28.28 million -3.3%7.7%4.7 $4.24
12/31/20216,900,000 shares $32.91 million -1.3%8.0%4.9 $4.77
12/15/20216,990,000 shares $34.04 million -10.5%8.1%4.9 $4.87
11/30/20217,810,000 shares $37.57 million +3.2%9.0%5.3 $4.81
11/15/20217,570,000 shares $43.07 million -12.2%8.8%5.6 $5.69
10/29/20218,620,000 shares $43.01 million +5.8%10.0%6.8 $4.99
10/15/20218,150,000 shares $32.03 million +1.5%9.4%12.3 $3.93
9/30/20218,030,000 shares $31.72 million -8.0%9.3%12.7 $3.95
9/15/20218,730,000 shares $30.56 million -0.6%10.1%15.4 $3.50
8/31/20218,780,000 shares $35.73 million +2.9%10.1%17.7 $4.07
8/13/20218,530,000 shares $31.13 million -10.8%9.6%15.1 $3.65
7/30/20219,560,000 shares $39.20 million +1.9%10.8%16.9 $4.10
7/15/20219,380,000 shares $38.36 million -1.3%10.6%13.1 $4.09
6/30/20219,500,000 shares $42.94 million -1.5%10.7%13.1 $4.52
6/15/20219,640,000 shares $46.27 million +3.2%10.9%12.7 $4.80
5/28/20219,340,000 shares $39.79 million -2.2%10.6%12.7 $4.26
5/14/20219,550,000 shares $41.73 million +53.8%N/A12.3 $4.37
4/30/20216,210,000 shares $29.25 million +5.4%N/A7.3 $4.71
4/15/20215,890,000 shares $30.98 million -7.2%N/A7.3 $5.26
3/31/20216,350,000 shares $30.42 million -7.8%N/A7.2 $4.79
3/15/20216,890,000 shares $37.48 million +3.3%N/A7.5 $5.44
2/26/20216,670,000 shares $34.45 million +3.4%N/A7.1 $5.17
2/12/20216,450,000 shares $35.86 million +13.0%7.3%6.7 $5.56
1/29/20215,710,000 shares $30.61 million -2.9%N/A5.8 $5.36
1/15/20215,880,000 shares $29.22 million +1.2%6.8%6.4 $4.97
12/31/20205,810,000 shares $24.34 million +1.0%6.7%6.7 $4.19
12/15/20205,750,000 shares $25.59 million +5.3%6.7%6.5 $4.45
11/30/20205,460,000 shares $23.48 million +7.1%6.3%6.2 $4.30
11/15/20205,100,000 shares $19.58 million -11.0%5.9%6 $3.84
10/30/20205,730,000 shares $15.99 million +2.1%6.6%7.8 $2.79
10/15/20205,610,000 shares $16.38 million +29.0%6.4%8.3 $2.92

ARAY Short Interest - Frequently Asked Questions

What is Accuray's current short interest?

Short interest is the volume of Accuray shares that have been sold short but have not yet been closed out or covered. As of September 15th, traders have sold 3,060,000 shares of ARAY short. Learn More on Accuray's current short interest.

What is a good short interest ratio for Accuray?

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. ARAY shares currently have a short interest ratio of 4.0. Learn More on Accuray's short interest ratio.

Which institutional investors are shorting Accuray?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Accuray: Group One Trading LLC, and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

Is Accuray's short interest increasing or decreasing?

Accuray saw a increase in short interest in September. As of September 15th, there was short interest totaling 3,060,000 shares, an increase of 37.8% from the previous total of 2,220,000 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 Accuray's short interest compare to its competitors?

Here is how the short interest of companies in the sector of "medical" compare to Accuray: Orthofix Medical Inc. (4.25%), AngioDynamics, Inc. (7.84%), Surmodics, Inc. (2.42%), Rockwell Medical, Inc. (5.36%), Abbott Laboratories (1.04%), Intuitive Surgical, Inc. (1.60%), Boston Scientific Corporation (1.28%), Stryker Corporation (1.29%), Medtronic PLC (1.00%), Becton, Dickinson and Company (1.50%),

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 ($8.81 billion), Canadian Natural Resources Limited ($5.82 billion), Reddit Inc. ($5.19 billion), Coinbase Global, Inc. ($4.52 billion), Robinhood Markets, Inc. ($4.30 billion), Charter Communications, Inc. ($3.75 billion), CoreWeave Inc. ($3.66 billion), Seagate Technology Holdings PLC ($3.57 billion), Live Nation Entertainment, Inc. ($3.33 billion), and Rocket Lab Corporation ($3.26 billion). View all of the most shorted stocks.

What does it mean to sell short Accuray stock?

Short selling ARAY is an investing strategy that aims to generate trading profit from Accuray as its price is falling. ARAY shares are trading up $0.04 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 Accuray?

A short squeeze for Accuray 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 ARAY, which in turn drives the price of the stock up even further.

How often is Accuray'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 ARAY, twice per month. The most recent reporting period available is September, 15 2025.




This page (NASDAQ:ARAY) was last updated on 10/4/2025 by MarketBeat.com Staff
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