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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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WMS short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float3.3%69,867,000 float shares
Days to Cover3.9594,050 average daily volume
Open Short Position2,303,453ADVANCED DRAINAGE SYSTEMS, INC
Change vs Previous-612,887-21.0%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20262,303,453-612,887-21.0%3.93.3%
Jul 15, 20262,916,340-222,526-7.1%4.74.2%
Jun 30, 20263,138,866+49,424+1.6%2.94.5%

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, 202688,785295116,51676.2%3
Aug 20, 202699,1174124,67379.5%3
Aug 19, 2026185,26315251,56873.6%3
Aug 18, 2026112,5315145,35877.4%3
Aug 17, 2026242,172822313,84077.2%3
Aug 14, 2026335,093902401,75183.4%2
Aug 13, 2026311,823711446,24669.9%3
Aug 12, 2026194,7762,420309,46662.9%3
Aug 11, 2026128,026504170,16675.2%3
Aug 10, 2026159,8152212,56675.2%3
Aug 7, 2026232,011116299,88177.4%3
Aug 6, 2026344,307123658,81652.3%3
Aug 5, 2026261,0462,121429,55560.8%3
Aug 4, 2026211,30148368,97157.3%3
Aug 3, 2026180,4315279,13764.6%3
Jul 31, 202670,966940117,55160.4%3
Jul 30, 2026108,9418314,84934.6%3
Jul 29, 2026125,19742264,96447.3%3
Jul 28, 202681,046931189,48442.8%3
Jul 27, 202669,2382,330138,64249.9%3
Jul 24, 202687,8110166,79252.6%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.