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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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TECX short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float14.8%11,911,800 float shares
Days to Cover10.8164,029 average daily volume
Open Short Position1,764,899Tectonic Therapeutic, Inc. Com
Change vs Previous-171,792-8.9%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20261,764,899-171,792-8.9%10.814.8%
Jul 15, 20261,936,691-199,980-9.4%7.616.3%
Jun 30, 20262,136,671-15,571-0.7%14.317.9%

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, 202639,88510,56683,74347.6%3
Aug 20, 202632,184084,75338.0%3
Aug 19, 202644,2310105,03542.1%3
Aug 18, 202663,1260285,90522.1%3
Aug 17, 202628,004057,32248.9%2
Aug 14, 202616,554027,32660.6%3
Aug 13, 202641,4610116,21235.7%3
Aug 12, 202658,9870338,88617.4%3
Aug 11, 202632,061085,41537.5%3
Aug 10, 202620,959044,74246.8%3
Aug 7, 202617,103039,56143.2%3
Aug 6, 202616,244023,25769.8%3
Aug 5, 202630,677048,94362.7%2
Aug 4, 202621,977077,16228.5%3
Aug 3, 202610,982028,42238.6%2
Jul 31, 202655,594088,66062.7%3
Jul 30, 202637,4304165,81956.9%3
Jul 29, 202622,398065,77734.1%2
Jul 28, 202611,682030,28638.6%3
Jul 27, 202626,907055,85348.2%2
Jul 24, 202611,418030,08238.0%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.