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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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COLB short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float3.1%280,325,000 float shares
Days to Cover2.63,362,717 average daily volume
Open Short Position8,629,160Columbia Banking System, Inc.
Change vs Previous-997,020-10.4%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20268,629,160-997,020-10.4%2.63.1%
Jul 15, 20269,626,180+1,023,710+11.9%3.83.4%
Jun 30, 20268,602,470-896,835-9.4%2.63.1%

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, 2026294,8160554,77353.1%3
Aug 20, 2026433,917161,015,12542.7%2
Aug 19, 20261,213,443101,925,17063.0%3
Aug 18, 2026848,65301,012,71883.8%3
Aug 17, 2026518,847130751,81969.0%3
Aug 14, 2026681,896340907,81875.1%3
Aug 13, 20261,599,59591,806,63888.5%3
Aug 12, 2026965,59001,197,31880.6%3
Aug 11, 2026543,034122770,05770.5%3
Aug 10, 2026448,5010633,64170.8%3
Aug 7, 2026603,8660819,42973.7%3
Aug 6, 2026346,51584555,63762.4%3
Aug 5, 2026353,63026706,23050.1%2
Aug 4, 2026256,4210517,40849.6%2
Aug 3, 2026374,4710902,53941.5%3
Jul 31, 2026320,295101719,45444.5%3
Jul 30, 2026599,0184,3191,333,85044.9%2
Jul 29, 2026466,3502673,51269.2%3
Jul 28, 2026585,6971,314931,27662.9%3
Jul 27, 2026471,5892,652834,36956.5%3
Jul 24, 20261,196,5651371,967,64660.8%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.