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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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PSNL short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float13.1%66,572,000 float shares
Days to Cover1.75,145,469 average daily volume
Open Short Position8,714,008Personalis, Inc. Common Stock
Change vs Previous-2,383,279-21.5%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20268,714,008-2,383,279-21.5%1.713.1%
Jul 15, 202611,097,287-209,391-1.9%2.316.7%
Jun 30, 202611,306,678+202,048+1.8%2.817.0%

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, 2026721,92980,9163,729,90919.4%3
Aug 20, 20261,731,33614,9787,556,69822.9%3
Aug 19, 2026839,5219,4553,351,39425.0%3
Aug 18, 2026196,4522,739341,79357.5%3
Aug 17, 2026174,5143,868340,98951.2%3
Aug 14, 2026236,3992,604482,07349.0%3
Aug 13, 2026124,273204397,26631.3%3
Aug 12, 2026143,5842,948711,54620.2%3
Aug 11, 2026313,5924,7251,534,68520.4%3
Aug 10, 2026477,63123,4911,706,15428.0%3
Aug 7, 2026447,5604,4261,258,11535.6%3
Aug 6, 2026376,4979,215656,70857.3%3
Aug 5, 2026183,818397392,96246.8%3
Aug 4, 2026284,936940548,90451.9%3
Aug 3, 2026552,2020997,88655.3%3
Jul 31, 2026686,15701,109,16861.9%3
Jul 30, 2026248,0680780,25731.8%3
Jul 29, 2026349,526200707,97349.4%3
Jul 28, 2026467,5551,812974,70548.0%3
Jul 27, 2026584,14216,6211,742,10233.5%3
Jul 24, 2026538,69610,7341,095,44349.2%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.