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Charles River Laboratories International (CRL) Short Interest Ratio & Short Volume

Charles River Laboratories International logo
$181.46 -4.33 (-2.33%)
Closing price 06/5/2026 03:59 PM Eastern
Extended Trading
$181.32 -0.14 (-0.08%)
As of 06/5/2026 07:32 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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Charles River Laboratories International Short Interest Overview

As of May 15, 2026, Charles River Laboratories International (CRL) had a short interest of 3.63 million shares sold short, representing 7.64% of the public float. This marks a 8.46% increase in short interest since the prior report. The short interest ratio (days to cover) is 3.8, meaning it would take 3.8 days of the average trading volume of 884,240 shares to cover all short positions.

Current Short Interest
3,632,420 shares
Previous Short Interest
3,349,211 shares
Change Vs. Previous Month
8.46%
Dollar Volume Sold Short
$547.10 million
Short Interest Ratio
3.8 Days to Cover
Last Record Date
May 15, 2026
Outstanding Shares
48,170,000 shares
Short Percent of Float
7.64%
Today's Trading Volume
519,308 shares
Average Trading Volume
884,240 shares
Today's Volume Vs. Average
59%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

CRL Short Interest Over Time

CRL Days to Cover Over Time

CRL Percentage of Float Shorted Over Time

Charles River Laboratories International 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
5/15/20263,632,420 shares $547.10 million +8.5%7.6%3.83 $150.62
4/30/20263,349,211 shares $559.00 million -28.2%7.0%4.54 $166.91
4/15/20264,666,350 shares $843.83 million +1.6%9.6%5.44 $180.83
3/31/20264,594,794 shares $791.07 million +22.3%9.4%5.33 $172.17
3/13/20263,756,012 shares $584.48 million +6.2%7.7%3.99 $155.61
2/27/20263,537,661 shares $632.06 million +19.8%7.3%2.24 $178.67
2/13/20262,953,939 shares $476.04 million +9.9%6.1%2.41 $161.15
1/30/20262,688,327 shares $566.16 million -5.2%5.5%4.89 $210.60
1/15/20262,835,349 shares $632.70 million +10.3%5.8%3.41 $223.15
12/31/20252,571,745 shares $513.37 million +6.7%5.3%4.82 $199.62
12/15/20252,409,632 shares $477.03 million -6.4%5.0%2.95 $197.97
11/28/20252,574,051 shares $458.54 million -4.8%5.3%2.97 $178.14
11/14/20252,703,341 shares $453.19 million +11.0%5.6%1.98 $167.64
10/31/20252,434,747 shares $438.66 million +16.6%5.0%2.12 $180.17
10/15/20252,090,000 shares $357.26 million -5.4%4.3%2.2 $170.94
9/30/20252,210,000 shares $346.11 million -13.7%4.5%2.4 $156.61
9/15/20252,560,000 shares $390.32 million -4.1%5.3%2.9 $152.47
8/31/20252,670,000 shares $435.98 million -11.6%5.5%3 $163.29
8/15/20253,020,000 shares $473.11 million +37.9%6.2%3.5 $156.66
7/31/20252,190,000 shares $370.93 million -5.6%4.5%2.3 $169.38
7/15/20252,320,000 shares $358.12 million -3.3%4.8%2.1 $154.36
6/30/20252,400,000 shares $363.94 million -8.1%5.0%1.6 $151.64
6/15/20252,610,000 shares $390.20 million +7.9%5.4%1.7 $149.50
5/31/20252,420,000 shares $327.93 million -12.3%5.0%1.5 $135.51
5/15/20252,760,000 shares $382.73 million +4.6%5.7%1.6 $138.67
4/30/20252,640,000 shares $312.79 million -12.9%5.4%1.5 $118.48
4/15/20253,030,000 shares $321.23 million +13.9%6.2%1.9 $106.02
3/31/20252,660,000 shares $400.55 million -19.4%5.5%2.2 $150.58
3/15/20253,300,000 shares $565.18 million +12.6%6.5%3 $171.27
2/28/20252,930,000 shares $483.47 million +26.3%5.8%2.9 $165.01
2/15/20252,320,000 shares $352.80 million +16.0%4.6%2.7 $152.07
1/31/20252,000,000 shares $329.76 million -7.4%N/A2.5 $164.88
1/15/20252,160,000 shares $376.64 million -4.4%N/A2.8 $174.37
12/31/20242,260,000 shares $417.20 million +5.6%N/A3.4 $184.60
12/15/20242,140,000 shares $407.58 million -1.8%N/A3.1 $190.46
11/30/20242,180,000 shares $433.95 million +13.0%N/A3.1 $199.06
11/15/20241,930,000 shares $362.34 million +4.3%N/A2.7 $187.74
10/31/20241,850,000 shares $330.37 million -12.3%N/A2.6 $178.58
10/15/20242,110,000 shares $409.00 million +7.1%N/A2.8 $193.84
9/30/20241,970,000 shares $388.03 million +4.2%N/A2.7 $196.97
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9/15/20241,890,000 shares $375.37 million +29.5%N/A2.8 $198.61
8/31/20241,460,000 shares $288.72 million -7.6%N/A2.3 $197.75
8/15/20241,580,000 shares $319.51 million -14.1%N/A2.5 $202.22
7/31/20241,840,000 shares $449.36 million +1.1%N/A2.9 $244.22
7/15/20241,820,000 shares $393.58 million +1.1%N/A3.6 $216.25
6/30/20241,800,000 shares $371.84 million -3.2%N/A3.5 $206.58
6/15/20241,860,000 shares $389.61 million -12.7%N/A3.6 $209.47
5/31/20242,130,000 shares $444.19 million +22.4%N/A4.1 $208.54
5/15/20241,740,000 shares $404.65 million -8.4%N/A3.4 $232.56
4/30/20241,900,000 shares $435.10 million -0.5%N/A3.6 $229.00
4/15/20241,910,000 shares $450.63 million +20.9%N/A3.6 $235.93
3/31/20241,580,000 shares $428.10 million -0.6%N/A2.8 $270.95
3/15/20241,590,000 shares $411.76 million -9.1%N/A2.9 $258.97
2/29/20241,750,000 shares $444.83 million -8.9%N/A3.1 $254.19
2/15/20241,920,000 shares $471.30 million +14.3%3.8%3.6 $245.47
1/31/20241,680,000 shares $363.20 million +27.3%N/A3.2 $216.19
1/15/20241,320,000 shares $279.17 million -12.0%N/A2.4 $211.49
12/31/20231,500,000 shares $354.60 million -8.5%N/A2.9 $236.40
12/15/20231,640,000 shares $378.53 million +11.6%N/A3.2 $230.81
11/30/20231,470,000 shares $289.71 million -9.8%N/A2.8 $197.08
11/15/20231,630,000 shares $305.74 million -3.0%N/A3.1 $187.57
10/31/20231,680,000 shares $282.84 million -4.0%N/A3.3 $168.36
10/15/20231,750,000 shares $334.29 million +4.8%N/A3.8 $191.02
9/30/20231,670,000 shares $327.29 million -1.8%N/A3.6 $195.98
9/15/20231,700,000 shares $353.40 million +10.4%N/A3.5 $207.88
8/31/20231,540,000 shares $318.50 million +11.6%N/A3.4 $206.82
8/15/20231,380,000 shares $289.90 million +9.5%N/A2.9 $210.07
7/31/20231,260,000 shares $264.02 million -3.8%2.5%2.5 $209.54
7/15/20231,310,000 shares $271.90 million -9.0%2.6%2.5 $207.56
6/30/20231,440,000 shares $302.76 million -5.9%2.9%2.8 $210.25
6/15/20231,530,000 shares $319.75 million +11.7%3.1%2.9 $208.99
5/31/20231,370,000 shares $264.96 million +2.2%2.7%2.5 $193.40
5/15/20231,340,000 shares $257.76 million -13.0%2.7%2.2 $192.36
4/30/20231,540,000 shares $292.78 million +11.6%N/A2.7 $190.12
4/15/20231,380,000 shares $281.09 million +2.2%2.8%2.5 $203.69
3/31/20231,350,000 shares $272.46 million +3.9%2.7%2.4 $201.82
3/15/20231,300,000 shares $253.37 million -0.8%2.6%2.3 $194.90
2/28/20231,310,000 shares $287.34 million +11.0%2.6%2.3 $219.34
2/15/20231,180,000 shares $296.81 million +3.5%2.4%2 $251.53
1/31/20231,140,000 shares $277.31 million +11.8%2.3%1.9 $243.25
1/15/20231,020,000 shares $237.27 million +1.0%N/A1.6 $232.62
12/30/20221,010,000 shares $220.08 million -2.9%N/A1.7 $217.90
12/15/20221,040,000 shares $227.24 million +17.6%N/A1.6 $218.50
11/30/2022884,200 shares $202.10 million -8.4%N/A1.4 $228.57
11/15/2022965,300 shares $241.39 million -19.6%N/A1.6 $250.07
10/31/20221,200,000 shares $254.70 million -8.4%N/A2 $212.25
10/15/20221,310,000 shares $258.36 million +14.9%N/A2.2 $197.22
9/30/20221,140,000 shares $224.35 million -12.3%N/A2 $196.80
9/15/20221,300,000 shares $264.69 million +28.7%N/A2.4 $203.61
8/31/20221,010,000 shares $207.30 million -1.9%N/A1.9 $205.25
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8/15/20221,030,000 shares $238.85 million +5.4%N/A2 $231.89
7/31/2022976,900 shares $244.75 million -7.0%1.9%1.9 $250.54
7/15/20221,050,000 shares $230.74 million -0.9%2.2%2 $219.75
6/30/20221,060,000 shares $226.81 million +2.9%2.2%1.9 $213.97
6/15/20221,030,000 shares $219.28 million +4.7%2.2%1.9 $212.89
5/31/2022983,800 shares $230.29 million -8.1%N/A1.8 $234.08
5/15/20221,070,000 shares $252.32 million -0.9%N/A1.9 $235.81
4/30/20221,080,000 shares $260.83 million +3.9%2.2%1.8 $241.51
4/15/20221,040,000 shares $296.02 million +7.7%2.1%2 $284.63
3/31/2022965,900 shares $274.29 million -8.9%1.9%1.8 $283.97
3/15/20221,060,000 shares $274.78 million -11.7%2.1%2.1 $259.23
2/28/20221,200,000 shares $349.39 million +11.1%2.4%2.5 $291.16
2/15/20221,080,000 shares $337.64 million +68.0%2.2%2.5 $312.63
1/31/2022642,900 shares $212.00 million +2.3%1.3%1.7 $329.76
1/15/2022628,700 shares $223.19 million -9.0%1.3%1.6 $355.01
12/31/2021690,900 shares $260.32 million +5.3%1.4%1.8 $376.78
12/15/2021656,000 shares $238.08 million -8.4%1.3%1.8 $362.92
11/30/2021716,400 shares $262.11 million -11.7%1.4%1.8 $365.87
11/15/2021811,200 shares $311.94 million +37.9%1.6%2.1 $384.54
10/29/2021588,100 shares $263.87 million -9.8%1.2%1.6 $448.68
10/15/2021651,700 shares $262.99 million +3.4%1.3%2 $403.54
9/30/2021630,300 shares $260.11 million +13.5%1.3%1.9 $412.67
9/15/2021555,400 shares $244.26 million -8.2%1.1%1.8 $439.79
8/31/2021605,200 shares $268.62 million +6.5%1.2%2.1 $443.86
8/13/2021568,500 shares $233.78 million -2.7%1.2%1.6 $411.22
7/30/2021584,400 shares $237.80 million -9.4%1.2%1 $406.92
7/15/2021644,800 shares $246.41 million -14.2%1.3%1.1 $382.15
6/30/2021751,900 shares $278.14 million -5.6%1.5%1.2 $369.92
6/15/2021796,600 shares $282.28 million -2.8%1.6%1.3 $354.36

CRL Short Interest - Frequently Asked Questions

Short interest is the volume of Charles River Laboratories International shares that have been sold short but have not yet been covered or closed out. As of May 15th, traders have sold 3,632,420 shares of CRL short. 7.64% of Charles River Laboratories International's shares are currently sold short. Learn More on Charles River Laboratories International'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. CRL shares currently have a short interest ratio of 3.8. Learn More on Charles River Laboratories International'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. 7.64% of Charles River Laboratories International's floating shares are currently sold short.

Charles River Laboratories International saw a increase in short interest in May. As of May 15th, there was short interest totaling 3,632,420 shares, an increase of 8.5% from the previous total of 3,349,211 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.

7.64% of Charles River Laboratories International's shares are currently sold short. Here is how the short interest of companies compare to Charles River Laboratories International: Bio-Techne Corp (9.42%), Agilent Technologies, Inc. (1.95%), IQVIA Holdings Inc. (3.00%), Revvity Inc. (8.61%), Thermo Fisher Scientific Inc. (1.29%), Mettler-Toledo International, Inc. (3.37%), Illumina, Inc. (5.11%), Bio-Rad Laboratories, Inc. (7.19%), Bruker Corporation (12.11%), Pacific Biosciences of California, Inc. (19.79%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($80.71 billion), Invesco QQQ ($47.96 billion), iShares Russell 2000 ETF ($22.13 billion), Western Digital Corporation ($14.35 billion), Sandisk Corporation ($12.86 billion), Salesforce Inc. ($10.89 billion), Nebius Group N.V. ($9.92 billion), SPDR S&P Biotech ETF ($9.72 billion), Lumentum Holdings Inc. ($8.89 billion), and iShares 20+ Year Treasury Bond ETF ($8.18 billion). View all of the most shorted stocks.

Short selling CRL is an investing strategy that aims to generate trading profit from Charles River Laboratories International as its price is falling. CRL shares are trading down $4.33 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 Charles River Laboratories International 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 CRL, 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 CRL, twice per month. The most recent reporting period available is May, 15 2026.

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

  • 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.


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This page (NYSE:CRL) was last updated on 6/7/2026 by MarketBeat.com Staff.
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