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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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ALEC short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float6.0%94,433,000 float shares
Days to Cover12.9436,932 average daily volume
Open Short Position5,644,306Alector, Inc. Common Stock
Change vs Previous-20,627-0.4%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20265,644,306-20,627-0.4%12.96.0%
Jul 15, 20265,664,933-51,594-0.9%10.26.0%
Jun 30, 20265,716,527+468,872+8.9%4.46.1%

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, 202644,5151,154124,89935.6%2
Aug 20, 202645,081604146,18730.8%3
Aug 19, 2026209,70402,049,11010.2%2
Aug 18, 20262,330,7181,0104,028,98457.8%3
Aug 17, 202672,8670305,02023.9%2
Aug 14, 202686,2380189,95745.4%3
Aug 13, 2026232,8030466,64649.9%3
Aug 12, 2026168,281186272,28361.8%3
Aug 11, 20261,882,25578,1433,647,12551.6%3
Aug 10, 2026143,0463,144373,10638.3%2
Aug 7, 2026138,7011,235568,40424.4%3
Aug 6, 20261,356,5972011,992,32368.1%2
Aug 5, 202678,4090128,95160.8%3
Aug 4, 202676,4210151,51050.4%2
Aug 3, 202660,9700112,52154.2%2
Jul 31, 2026107,4990161,80266.4%3
Jul 30, 2026125,4950199,70662.8%2
Jul 29, 202653,677081,50265.9%2
Jul 28, 202644,438087,18851.0%2
Jul 27, 202634,334045,76075.0%3
Jul 24, 202686,7431109,49879.2%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.