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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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ACGL short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float2.5%327,422,000 float shares
Days to Cover4.02,035,444 average daily volume
Open Short Position8,062,692Arch Capital Group Ltd. Common
Change vs Previous-743,709-8.4%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20268,062,692-743,709-8.4%4.02.5%
Jul 15, 20268,806,401+523,410+6.3%5.52.7%
Jun 30, 20268,282,991-615,068-6.9%3.42.5%

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, 2026168,503306316,24453.3%3
Aug 20, 2026275,664386492,12756.0%3
Aug 19, 2026276,722246441,04262.7%3
Aug 18, 2026280,633392601,17846.7%3
Aug 17, 2026228,167253434,23052.5%3
Aug 14, 2026186,463141317,98258.6%3
Aug 13, 2026175,07772362,61048.3%3
Aug 12, 2026286,687431953,47530.1%3
Aug 11, 2026166,2081,3741,525,82910.9%3
Aug 10, 2026253,000835484,98452.2%3
Aug 7, 2026247,296506470,80052.5%3
Aug 6, 2026211,87816397,77253.3%3
Aug 5, 2026391,195136628,29862.3%3
Aug 4, 2026390,9640646,29860.5%3
Aug 3, 2026334,470600564,16759.3%3
Jul 31, 2026266,42370455,12958.5%3
Jul 30, 2026435,524655675,14664.5%3
Jul 29, 2026754,2691241,108,28168.1%3
Jul 28, 2026356,097773723,11449.2%3
Jul 27, 2026309,7366,570656,94747.1%3
Jul 24, 2026435,910564911,66147.8%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.