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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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MCK short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float3.1%116,339,000 float shares
Days to Cover3.8940,487 average daily volume
Open Short Position3,613,111McKesson Corporation
Change vs Previous-264,949-6.8%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20263,613,111-264,949-6.8%3.83.1%
Jul 15, 20263,878,060-239,717-5.8%4.13.3%
Jun 30, 20264,117,777-332,407-7.5%2.83.5%

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, 2026129,97843290,17844.8%3
Aug 20, 202699,86144196,81350.7%3
Aug 19, 202686,320971253,11934.1%3
Aug 18, 2026121,5470233,48752.1%3
Aug 17, 2026166,21111311,71853.3%3
Aug 14, 2026113,00838240,78346.9%3
Aug 13, 2026153,254825345,81244.3%3
Aug 12, 2026197,3850453,03043.6%3
Aug 11, 2026167,3060310,08054.0%3
Aug 10, 2026174,5820278,71862.6%3
Aug 7, 2026440,155122545,27180.7%3
Aug 6, 2026374,42014635,33858.9%3
Aug 5, 2026227,154275372,39861.0%3
Aug 4, 2026116,8710327,49035.7%3
Aug 3, 2026162,313367363,97344.6%3
Jul 31, 202698,061113203,98048.1%3
Jul 30, 2026122,71080201,63860.9%3
Jul 29, 2026174,85634284,98461.4%3
Jul 28, 2026348,5006534,50865.2%3
Jul 27, 2026169,31378257,30965.8%3
Jul 24, 2026158,8834268,65759.1%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.