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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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INSM short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float5.7%200,031,000 float shares
Days to Cover5.12,207,650 average daily volume
Open Short Position11,350,580Insmed Incorporated Common Sto
Change vs Previous-274,176-2.4%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 202611,350,580-274,176-2.4%5.15.7%
Jul 15, 202611,624,756-4,405,297-27.5%4.85.8%
Jun 30, 202616,030,053-2,617,573-14.0%2.88.0%

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, 2026184,687200408,62045.2%3
Aug 20, 2026211,862604846,10125.0%3
Aug 19, 2026258,2860570,68945.3%3
Aug 18, 2026204,2730475,58743.0%3
Aug 17, 2026255,5060726,92335.1%3
Aug 14, 2026271,9523923,43129.5%3
Aug 13, 2026253,9901,9221,008,76625.2%3
Aug 12, 2026185,3760627,75629.5%3
Aug 11, 2026430,4510997,63943.1%3
Aug 10, 2026735,53801,553,27647.4%3
Aug 7, 20261,110,28035,9562,428,06045.7%3
Aug 6, 20262,158,5581,1134,988,55443.3%3
Aug 5, 2026335,6481411,967,34217.1%3
Aug 4, 2026424,02702,008,68321.1%3
Aug 3, 2026276,0614671,571,49117.6%3
Jul 31, 2026379,072201,340,91128.3%3
Jul 30, 2026643,094101,579,42240.7%3
Jul 29, 2026359,003250880,96140.8%3
Jul 28, 2026240,8540766,90331.4%3
Jul 27, 2026228,1360739,95430.8%3
Jul 24, 2026288,38720714,78940.3%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.