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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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ARWR short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float7.8%123,172,000 float shares
Days to Cover3.92,505,740 average daily volume
Open Short Position9,656,078Arrowhead Pharmaceuticals, Inc
Change vs Previous+20,781+0.2%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20269,656,078+20,781+0.2%3.97.8%
Jul 15, 20269,635,297+1,204,517+14.3%4.97.8%
Jun 30, 20268,430,780-3,308,064-28.2%2.26.8%

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, 2026296,7540470,65163.1%3
Aug 20, 2026260,3400383,86767.8%3
Aug 19, 2026236,4450471,21950.2%3
Aug 18, 2026293,93037,200446,41965.8%3
Aug 17, 2026240,58855,888450,12553.4%3
Aug 14, 2026161,2084311,92451.7%3
Aug 13, 2026190,5220438,13743.5%3
Aug 12, 2026255,44323,000391,01965.3%3
Aug 11, 2026232,8030350,58366.4%3
Aug 10, 2026200,9590315,99863.6%3
Aug 7, 2026208,652101292,95271.2%3
Aug 6, 2026219,51210329,78266.6%3
Aug 5, 2026440,8082,336611,07972.1%3
Aug 4, 2026598,901122869,88368.8%3
Aug 3, 2026316,5922,361505,02662.7%3
Jul 31, 2026543,877465768,08770.8%3
Jul 30, 2026385,5430638,97060.3%3
Jul 29, 2026478,2581,242725,09066.0%3
Jul 28, 2026471,9430785,98960.0%3
Jul 27, 2026915,42801,222,83574.9%3
Jul 24, 2026531,1450896,57459.2%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.