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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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AVIR short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float12.5%60,159,000 float shares
Days to Cover18.0417,474 average daily volume
Open Short Position7,528,225Atea Pharmaceuticals, Inc. Com
Change vs Previous-229,106-3.0%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20267,528,225-229,106-3.0%18.012.5%
Jul 15, 20267,757,331+766,398+11.0%22.812.9%
Jun 30, 20266,990,933-82,931-1.2%16.011.6%

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, 202623,949073,72132.5%2
Aug 20, 202633,286358,08957.3%3
Aug 19, 202648,107091,39152.6%3
Aug 18, 202619,955028,71869.5%2
Aug 17, 202628,617079,82235.9%3
Aug 14, 202629,632059,51749.8%3
Aug 13, 202678,1600188,29541.5%3
Aug 12, 202653,11113190,83658.5%3
Aug 11, 202629,96910043,71468.6%3
Aug 10, 202624,165035,49168.1%3
Aug 7, 202628,26220266,32742.6%2
Aug 6, 202628,024058,62047.8%2
Aug 5, 202640,253078,64551.2%2
Aug 4, 202662,8550204,43930.7%3
Aug 3, 202653,97350081,36666.3%2
Jul 31, 202658,8310105,66155.7%2
Jul 30, 202662,0780148,73841.7%2
Jul 29, 2026104,1366,467330,86431.5%2
Jul 28, 2026305,13911,750529,63557.6%3
Jul 27, 202653,6010152,75735.1%2
Jul 24, 202659,5310185,71532.1%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.