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EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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CRL short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float7.2%47,223,800 float shares
Days to Cover4.1841,792 average daily volume
Open Short Position3,419,974Charles River Laboratories Int
Change vs Previous+76,448+2.3%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20263,419,974+76,448+2.3%4.17.2%
Jul 15, 20263,343,526-1,011,266-23.2%4.07.1%
Jun 30, 20264,354,792+742,099+20.5%4.39.2%

Short interest is an open-position snapshot published twice monthly. It is not daily short-sale volume.

Daily off-exchange short volume

FINRA-reported short-sale transaction flow for the last 30 calendar days.

Trade DateShort VolumeShort ExemptFINRA TotalShort Volume %Facilities
Aug 21, 2026196,6110449,05043.8%3
Aug 20, 2026160,9410531,04330.3%3
Aug 19, 2026210,1704,312597,73335.2%3
Aug 18, 2026155,7701,787335,27346.5%3
Aug 17, 2026259,3090404,49864.1%3
Aug 14, 2026101,5710285,34735.6%3
Aug 13, 2026242,6380436,60655.6%3
Aug 12, 2026227,3810488,75946.5%3
Aug 11, 2026223,4230405,47555.1%3
Aug 10, 2026198,7440383,76751.8%3
Aug 7, 2026143,6320259,04455.4%3
Aug 6, 2026266,1680406,99665.4%3
Aug 5, 2026286,0060747,77338.2%3
Aug 4, 2026289,5750495,78058.4%3
Aug 3, 2026126,44264272,64446.4%3
Jul 31, 2026105,70045205,93951.3%3
Jul 30, 2026246,7450366,59467.3%3
Jul 29, 2026251,561179311,62080.7%3
Jul 28, 2026284,925401523,25454.5%3
Jul 27, 2026134,8310288,33746.8%3

Daily short volume is transaction flow reported through FINRA facilities. It does not measure open short positions and is not consolidated exchange-wide volume.