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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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MKSI short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float8.6%67,206,000 float shares
Days to Cover4.01,429,558 average daily volume
Open Short Position5,751,932MKS Inc. Common Stock
Change vs Previous+593,333+11.5%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20265,751,932+593,333+11.5%4.08.6%
Jul 15, 20265,158,599+194,932+3.9%3.97.7%
Jun 30, 20264,963,667+376,239+8.2%2.87.4%

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, 202699,8090381,34226.2%3
Aug 20, 202692,6730338,57227.4%3
Aug 19, 2026211,0970813,35026.0%3
Aug 18, 2026209,6861667,67331.4%3
Aug 17, 2026188,40863391,87548.1%3
Aug 14, 2026192,7220417,94746.1%3
Aug 13, 2026180,4340430,55941.9%3
Aug 12, 2026278,6071,117625,09244.6%3
Aug 11, 202691,1199302,49830.1%3
Aug 10, 2026142,192455383,70937.1%3
Aug 7, 2026170,736780497,45434.3%3
Aug 6, 2026266,4405,5771,253,35521.3%3
Aug 5, 2026311,8107,797924,22333.7%3
Aug 4, 2026461,86633740,40062.4%3
Aug 3, 2026332,3650643,81551.6%3
Jul 31, 2026193,264241471,30141.0%3
Jul 30, 2026527,3057,4061,508,92134.9%3
Jul 29, 2026252,0902,285939,80326.8%3
Jul 28, 2026293,87812,070824,76235.6%3
Jul 27, 2026201,4180606,22033.2%3
Jul 24, 2026144,5430379,88738.0%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.