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

MRCY short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float8.9%55,525,000 float shares
Days to Cover7.9625,141 average daily volume
Open Short Position4,952,067Mercury Systems Inc Common Sto
Change vs Previous+146,519+3.0%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20264,952,067+146,519+3.0%7.98.9%
Jul 15, 20264,805,548+165,943+3.6%8.58.7%
Jun 30, 20264,639,605+67,405+1.5%4.78.4%

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, 2026164,678350396,95441.5%3
Aug 20, 2026197,7150531,11137.2%3
Aug 19, 2026408,1930737,22755.4%3
Aug 18, 2026395,9645,695663,05259.7%3
Aug 17, 2026280,0500552,19250.7%3
Aug 14, 202675,4642,694126,61859.6%3
Aug 13, 2026133,1340189,67770.2%3
Aug 12, 202686,5560141,34261.2%3
Aug 11, 202680,9260136,70759.2%3
Aug 10, 2026122,0300183,90066.4%3
Aug 7, 202675,093190123,76660.7%2
Aug 6, 202683,327837138,45860.2%3
Aug 5, 2026103,336780227,20245.5%3
Aug 4, 2026172,7843252,78868.4%3
Aug 3, 2026172,5860235,06673.4%3
Jul 31, 2026106,0272,614128,58282.5%3
Jul 30, 2026109,6624,099163,58967.0%3
Jul 29, 2026159,746140262,00861.0%3
Jul 28, 202693,6672,910197,66547.4%3
Jul 27, 2026101,51767155,61565.2%3
Jul 24, 2026121,401847168,42172.1%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.