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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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BLDR short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float8.1%98,590,000 float shares
Days to Cover3.12,627,706 average daily volume
Open Short Position8,013,450Builders FirstSource, Inc.
Change vs Previous+813,260+11.3%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20268,013,450+813,260+11.3%3.18.1%
Jul 15, 20267,200,190-403,146-5.3%3.67.3%
Jun 30, 20267,603,336-333,383-4.2%2.97.7%

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, 2026333,7060618,58453.9%3
Aug 20, 2026418,2460700,53359.7%3
Aug 19, 2026494,147325851,85558.0%3
Aug 18, 2026316,199288554,00057.1%3
Aug 17, 2026392,7853,215608,86164.5%3
Aug 14, 2026312,3140487,98164.0%3
Aug 13, 2026372,4960624,51559.6%3
Aug 12, 2026480,31540749,34664.1%3
Aug 11, 2026406,4750762,81753.3%3
Aug 10, 2026383,91720739,46951.9%3
Aug 7, 2026331,492124717,38946.2%3
Aug 6, 2026332,296484858,88238.7%3
Aug 5, 2026315,79320584,22854.1%3
Aug 4, 2026421,5860788,43153.5%3
Aug 3, 2026748,9312,2001,216,29961.6%3
Jul 31, 2026553,9007331,050,92352.7%3
Jul 30, 20261,277,5751,7491,913,68166.8%3
Jul 29, 20261,410,2601,0422,352,71159.9%3
Jul 28, 2026414,2330729,78656.8%3
Jul 27, 2026460,995108746,11161.8%3
Jul 24, 2026451,442287820,23055.0%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.