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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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ALKS short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float9.3%155,146,000 float shares
Days to Cover7.71,866,095 average daily volume
Open Short Position14,406,911Alkermes plc Ordinary Shares
Change vs Previous-610,832-4.1%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 202614,406,911-610,832-4.1%7.79.3%
Jul 15, 202615,017,743-2,447,201-14.0%9.19.7%
Jun 30, 202617,464,944-497,807-2.8%4.811.3%

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, 202696,7250305,98931.6%3
Aug 20, 2026210,295106562,15737.4%3
Aug 19, 202678,88215461,80517.1%3
Aug 18, 202688,4821330,83926.7%3
Aug 17, 202687,2970230,94137.8%3
Aug 14, 2026192,0610347,74055.2%3
Aug 13, 2026350,6820515,17368.1%3
Aug 12, 2026235,5450340,47869.2%3
Aug 11, 2026328,3290538,53861.0%3
Aug 10, 2026228,2740439,52651.9%3
Aug 7, 2026230,4250334,73768.8%3
Aug 6, 2026196,0350459,63642.7%3
Aug 5, 2026310,13480535,70157.9%3
Aug 4, 2026193,0570445,47443.3%3
Aug 3, 2026265,4805691,85238.4%3
Jul 31, 2026315,3430586,76753.7%3
Jul 30, 2026259,3652171,153,39722.5%3
Jul 29, 2026877,6486401,762,06349.8%3
Jul 28, 2026601,6948071,458,01541.3%3
Jul 27, 2026210,191146456,70946.0%3
Jul 24, 2026243,938272513,21447.5%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.