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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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HTFL short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float10.2%66,818,000 float shares
Days to Cover6.61,036,128 average daily volume
Open Short Position6,847,694Heartflow, Inc. Common Stock
Change vs Previous+974,257+16.6%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20266,847,694+974,257+16.6%6.610.2%
Jul 15, 20265,873,437+695,938+13.4%4.28.8%
Jun 30, 20265,177,499+963,015+22.9%1.77.7%

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, 2026271,9497001,105,72624.6%3
Aug 20, 2026266,558348999,12926.7%3
Aug 19, 2026379,9192921,379,68327.5%3
Aug 18, 2026518,9979141,702,09430.5%3
Aug 17, 2026308,4081031,729,65117.8%3
Aug 14, 20261,236,3351,4794,334,20328.5%3
Aug 13, 2026262,95418,810596,32844.1%3
Aug 12, 2026201,15020440,74645.6%3
Aug 11, 2026127,7911,387218,20058.6%3
Aug 10, 2026171,09810386,47244.3%3
Aug 7, 2026235,4484341,02969.0%3
Aug 6, 2026168,23780218,90276.9%3
Aug 5, 2026265,8560460,98357.7%3
Aug 4, 2026149,8910223,37267.1%3
Aug 3, 2026210,07610311,88667.4%3
Jul 31, 2026260,1593307,84884.5%3
Jul 30, 2026328,626539404,57281.2%3
Jul 29, 2026298,5330439,57967.9%2
Jul 28, 2026678,4750842,97480.5%3
Jul 27, 2026530,2120725,79673.1%2
Jul 24, 2026301,47915432,38969.7%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.