Stockfacts
Use CasesDocsPricing
Log inSign up free
OverviewFinancialsTrendsTranscriptsOptionsShortsInstitutionsInsidersCorporate ActionsSEC Filings
Stockfacts

EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

Use CasesDashboard

ALNY short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float3.6%133,215,000 float shares
Days to Cover2.22,204,446 average daily volume
Open Short Position4,803,194Alnylam Pharmaceuticals, Inc.
Change vs Previous-970,179-16.8%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20264,803,194-970,179-16.8%2.23.6%
Jul 15, 20265,773,373-26,415-0.5%3.24.3%
Jun 30, 20265,799,788+362,451+6.7%4.24.4%

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, 2026650,4650896,75672.5%3
Aug 20, 2026567,260746907,93562.5%3
Aug 19, 2026567,685161921,34261.6%3
Aug 18, 2026425,6615,203715,54259.5%3
Aug 17, 2026523,23859727,99571.9%3
Aug 14, 2026363,7316,384708,48551.3%3
Aug 13, 2026289,23720705,18341.0%3
Aug 12, 2026242,585250538,41645.1%3
Aug 11, 2026124,647109609,60820.4%3
Aug 10, 2026203,85417,026563,34536.2%3
Aug 7, 2026281,38918769,16536.6%3
Aug 6, 2026484,518352926,73852.3%3
Aug 5, 2026495,4921561,372,74036.1%3
Aug 4, 2026552,7508251,488,44937.1%3
Aug 3, 2026325,75301,581,14520.6%3
Jul 31, 2026432,55530,4462,320,41918.6%3
Jul 30, 20261,624,04799,3764,725,58434.4%3
Jul 29, 2026344,54281584,63358.9%3
Jul 28, 2026291,90753702,06541.6%3
Jul 27, 2026286,4740731,77039.1%3
Jul 24, 2026317,3069507,44162.5%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.