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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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WLK short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float14.5%33,220,700 float shares
Days to Cover4.8998,082 average daily volume
Open Short Position4,833,608Westlake Corporation
Change vs Previous-441,976-8.4%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20264,833,608-441,976-8.4%4.814.5%
Jul 15, 20265,275,584+407,685+8.4%4.515.9%
Jun 30, 20264,867,899+891,235+22.4%3.614.7%

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, 202684,4020191,15744.2%3
Aug 20, 2026112,069143236,34647.4%3
Aug 19, 2026123,7725218,72756.6%3
Aug 18, 2026210,0343353,52759.4%3
Aug 17, 2026194,3947311,82062.3%3
Aug 14, 2026233,7920325,75571.8%3
Aug 13, 202677,6340156,31849.7%3
Aug 12, 2026136,15914228,19659.7%3
Aug 11, 2026230,6725,247421,04154.8%3
Aug 10, 2026298,9490463,87064.4%3
Aug 7, 2026168,1620309,52454.3%3
Aug 6, 2026200,6560354,95756.5%3
Aug 5, 2026379,7681782,71048.5%3
Aug 4, 2026371,1423001,283,20428.9%3
Aug 3, 2026420,61201,006,47241.8%3
Jul 31, 2026231,0991455,28450.8%3
Jul 30, 2026183,4410565,09232.5%3
Jul 29, 2026114,87887655,12417.5%3
Jul 28, 2026135,8460379,06535.8%3
Jul 27, 2026166,98157579,16728.8%3
Jul 24, 2026128,55454428,58130.0%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.