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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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BLLN short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float7.6%25,312,500 float shares
Days to Cover3.4568,120 average daily volume
Open Short Position1,920,601BillionToOne, Inc. Class A Com
Change vs Previous-486,602-20.2%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20261,920,601-486,602-20.2%3.47.6%
Jul 15, 20262,407,203-17,200-0.7%3.69.5%
Jun 30, 20262,424,403+617,904+34.2%3.09.6%

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, 2026220,0730299,67973.4%3
Aug 20, 2026185,267236289,79763.9%3
Aug 19, 2026184,906562267,89969.0%3
Aug 18, 2026172,045139271,27763.4%3
Aug 17, 2026124,5770213,79958.3%3
Aug 14, 202692,0190233,77739.4%3
Aug 13, 2026173,6792,156404,92242.9%3
Aug 12, 2026142,4233,853264,86753.8%3
Aug 11, 2026138,3540256,46353.9%3
Aug 10, 2026227,6570424,71953.6%3
Aug 7, 2026248,35911,692646,55738.4%3
Aug 6, 2026716,88864,7951,832,58239.1%3
Aug 5, 2026186,6574,110369,62850.5%3
Aug 4, 2026111,085408327,53433.9%3
Aug 3, 2026131,5931302,67843.5%3
Jul 31, 202679,5160182,08543.7%3
Jul 30, 202674,47913,449232,97432.0%3
Jul 29, 2026106,1374,205257,18141.3%3
Jul 28, 2026133,77052347,05138.5%3
Jul 27, 202682,80093223,67037.0%3
Jul 24, 202698,48312,959207,21947.5%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.