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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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ERII short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float5.6%49,141,400 float shares
Days to Cover3.6778,626 average daily volume
Open Short Position2,774,253Energy Recovery, Inc. Common S
Change vs Previous+61,972+2.3%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20262,774,253+61,972+2.3%3.65.6%
Jul 15, 20262,712,281+147,420+5.8%4.05.5%
Jun 30, 20262,564,861+282,367+12.4%1.85.2%

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, 2026108,3280224,48948.3%2
Aug 20, 2026261,0010405,20364.4%3
Aug 19, 2026129,2500273,07747.3%3
Aug 18, 2026216,1700421,38051.3%3
Aug 17, 2026221,9510372,82859.5%3
Aug 14, 2026226,7100537,00642.2%3
Aug 13, 2026310,468311512,78860.5%3
Aug 12, 202690,8240210,38643.2%3
Aug 11, 2026196,7520408,36748.2%3
Aug 10, 2026126,1320315,78339.9%3
Aug 7, 2026152,3870366,38641.6%3
Aug 6, 2026176,0692,062505,69634.8%3
Aug 5, 2026153,8470325,15047.3%3
Aug 4, 2026131,7910341,69938.6%3
Aug 3, 2026223,2740388,05057.5%3
Jul 31, 2026269,485600578,98446.5%3
Jul 30, 2026142,018100334,07242.5%3
Jul 29, 2026361,541734674,57453.6%3
Jul 28, 2026121,9161243,50850.1%3
Jul 27, 2026133,321407231,79057.5%2
Jul 24, 2026116,7831,132265,69744.0%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.