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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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ROCK short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float4.8%29,352,300 float shares
Days to Cover4.0349,677 average daily volume
Open Short Position1,412,139Gibraltar Industries, Inc. Com
Change vs Previous+37,708+2.7%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20261,412,139+37,708+2.7%4.04.8%
Jul 15, 20261,374,431+106,922+8.4%4.94.7%
Jun 30, 20261,267,509-50,228-3.8%2.84.3%

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, 202652,270477,20667.7%2
Aug 20, 202653,632070,86875.7%3
Aug 19, 202649,527866,93874.0%2
Aug 18, 202647,784055,87185.5%3
Aug 17, 202643,856060,10573.0%3
Aug 14, 202646,471062,13174.8%3
Aug 13, 202645,534057,31079.5%3
Aug 12, 202682,8760319,10626.0%3
Aug 11, 202675,152087,17386.2%3
Aug 10, 2026109,0701,443138,03879.0%3
Aug 7, 202662,482088,30270.8%3
Aug 6, 2026149,4230214,32769.7%3
Aug 5, 2026154,4160315,55348.9%3
Aug 4, 202699,0790138,26671.7%3
Aug 3, 202695,0635127,37174.6%3
Jul 31, 202688,2471,500112,52678.4%3
Jul 30, 202690,0500119,51875.3%3
Jul 29, 2026135,33249168,18180.5%3
Jul 28, 2026100,901174125,46580.4%3
Jul 27, 202653,524079,83967.0%3
Jul 24, 202651,472063,58281.0%2

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