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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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QTRX short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float11.7%38,645,100 float shares
Days to Cover9.1496,598 average daily volume
Open Short Position4,504,825Quanterix Corporation Common S
Change vs Previous+167,734+3.9%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20264,504,825+167,734+3.9%9.111.7%
Jul 15, 20264,337,091+9,712+0.2%9.211.2%
Jun 30, 20264,327,379-150,644-3.4%2.611.2%

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, 202630,3670116,83126.0%2
Aug 20, 202699,0870280,83935.3%3
Aug 19, 2026165,191237381,18743.3%3
Aug 18, 2026147,4984307,73547.9%3
Aug 17, 2026264,70457,470530,87449.9%3
Aug 14, 2026186,0775,359364,26951.1%2
Aug 13, 2026174,5900398,98943.8%3
Aug 12, 2026277,022883553,55250.0%3
Aug 11, 2026385,82743,649831,99946.4%3
Aug 10, 20261,131,596124,6152,066,22754.8%3
Aug 7, 202699,6190198,54650.2%3
Aug 6, 202637,424478,61947.6%3
Aug 5, 202699,7270145,03468.8%3
Aug 4, 2026107,1444165,11164.9%3
Aug 3, 2026119,5760187,36763.8%3
Jul 31, 202692,1661,525157,89558.4%3
Jul 30, 2026118,8748175,13767.9%2
Jul 29, 202670,9330190,64137.2%3
Jul 28, 2026108,88410185,17158.8%3
Jul 27, 202666,2670109,78060.4%3
Jul 24, 202675,66629161,89246.7%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.