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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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FIX short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float1.9%35,930,700 float shares
Days to Cover1.1621,477 average daily volume
Open Short Position695,921Comfort Systems USA, Inc.
Change vs Previous-143,337-17.1%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 2026695,921-143,337-17.1%1.11.9%
Jul 15, 2026839,258+92,757+12.4%1.92.3%
Jun 30, 2026746,501-40,402-5.1%1.22.1%

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, 202661,46434151,23440.6%3
Aug 20, 202677,70662148,55752.3%3
Aug 19, 202693,282257179,22252.0%3
Aug 18, 202692,72992211,12843.9%3
Aug 17, 2026104,9932,435188,17655.8%3
Aug 14, 202676,23940177,74142.9%3
Aug 13, 202655,46035110,40550.2%3
Aug 12, 202653,87952118,62145.4%3
Aug 11, 202649,11553207,54623.7%3
Aug 10, 202653,481200105,22050.8%3
Aug 7, 202678,322545162,20648.3%3
Aug 6, 202658,41924132,74144.0%3
Aug 5, 202678,874208148,22853.2%3
Aug 4, 202682,18364194,86942.2%3
Aug 3, 202662,0291157,73439.3%3
Jul 31, 202669,7813,340157,16844.4%3
Jul 30, 2026133,054107300,76244.2%3
Jul 29, 2026137,8984,279346,45939.8%3
Jul 28, 2026126,8326,057307,71141.2%3
Jul 27, 2026122,06898256,54447.6%3
Jul 24, 2026201,352380327,70561.4%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.