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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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ONTO short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float5.4%48,720,400 float shares
Days to Cover2.31,159,491 average daily volume
Open Short Position2,646,567Onto Innovation Inc.
Change vs Previous-38,540-1.4%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20262,646,567-38,540-1.4%2.35.4%
Jul 15, 20262,685,107+58,919+2.2%2.05.5%
Jun 30, 20262,626,188+53,617+2.1%1.75.4%

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, 2026111,239143309,34636.0%3
Aug 20, 2026134,35474276,37848.6%3
Aug 19, 2026229,13420,876494,09546.4%3
Aug 18, 2026212,2367,464591,91835.9%3
Aug 17, 2026295,0210586,76750.3%3
Aug 14, 2026221,938411450,85449.2%3
Aug 13, 2026188,21424441,14242.7%3
Aug 12, 2026330,879285629,07652.6%3
Aug 11, 2026309,7450557,36855.6%3
Aug 10, 2026279,7710499,20256.0%3
Aug 7, 2026529,976201948,75155.9%3
Aug 6, 2026266,021420659,59740.3%3
Aug 5, 2026239,680634467,46151.3%3
Aug 4, 2026299,0230575,57652.0%3
Aug 3, 2026220,5820352,90262.5%3
Jul 31, 2026369,488205613,66460.2%3
Jul 30, 2026273,1937,107607,24445.0%3
Jul 29, 2026294,3495,053855,09334.4%3
Jul 28, 2026219,2973,519550,04439.9%3
Jul 27, 2026189,0170479,28439.4%3
Jul 24, 2026138,423398354,11539.1%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.