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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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TGEN short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float7.0%16,705,900 float shares
Days to Cover4.1285,890 average daily volume
Open Short Position1,162,337Tecogen Inc.
Change vs Previous-113,233-8.9%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20261,162,337-113,233-8.9%4.17.0%
Jul 15, 20261,275,570+21,563+1.7%5.17.6%
Jun 30, 20261,254,007+120,420+10.6%5.97.5%

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, 202631,201085,39636.5%2
Aug 20, 202624,973090,90827.5%2
Aug 19, 202633,856097,89434.6%2
Aug 18, 202641,998094,16144.6%3
Aug 17, 202628,8282,02458,08149.6%2
Aug 14, 202648,7974,691163,93929.8%3
Aug 13, 202682,2075,871187,38843.9%3
Aug 12, 202635,058071,50449.0%3
Aug 11, 202619,24536342,37045.4%3
Aug 10, 202620,60720043,93846.9%2
Aug 7, 202635,406065,58654.0%3
Aug 6, 202628,84329361,45346.9%2
Aug 5, 202624,012054,82843.8%3
Aug 4, 202643,658281,90253.3%3
Aug 3, 202648,714500132,10736.9%3
Jul 31, 202625,682045,38556.6%3
Jul 30, 202614,64060084,11217.4%3
Jul 29, 2026132,1770298,65344.3%3
Jul 28, 202690,1830228,33939.5%3
Jul 27, 202646,2864,06799,05746.7%3
Jul 24, 202645,50597193,31223.5%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.