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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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CNI short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float0.8%603,182,000 float shares
Days to Cover2.61,822,588 average daily volume
Open Short Position4,651,995Canadian National Railway
Change vs Previous+1,636,063+54.3%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20264,651,995+1,636,063+54.3%2.60.8%
Jul 15, 20263,015,932+209,768+7.5%2.20.5%
Jun 30, 20262,806,164-3,237,955-53.6%1.70.5%

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, 2026242,5740407,37359.5%3
Aug 20, 2026249,8611348,19571.8%3
Aug 19, 2026349,2351,220415,73184.0%3
Aug 18, 2026205,800872330,71362.2%3
Aug 17, 2026112,1230200,34656.0%3
Aug 14, 2026125,3490202,40561.9%3
Aug 13, 2026177,2590288,57461.4%3
Aug 12, 2026162,38729,847322,28650.4%3
Aug 11, 2026247,671160388,52263.7%3
Aug 10, 2026256,962192353,32872.7%3
Aug 7, 2026269,65314434,17562.1%3
Aug 6, 2026288,0350399,83372.0%3
Aug 5, 2026278,1581,273399,37269.6%3
Aug 4, 2026432,35056625,46869.1%3
Aug 3, 2026241,598193378,96563.8%3
Jul 31, 2026444,503435575,23477.3%3
Jul 30, 2026771,35676994,55177.6%3
Jul 29, 2026521,279141643,57581.0%3
Jul 28, 2026334,22216514,30265.0%3
Jul 27, 2026355,0760740,36848.0%3
Jul 24, 2026388,875186898,17243.3%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.