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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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OABI short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float5.2%114,270,000 float shares
Days to Cover17.7339,704 average daily volume
Open Short Position5,997,131OmniAb, Inc. Common Stock
Change vs Previous+120,015+2.0%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20265,997,131+120,015+2.0%17.75.2%
Jul 15, 20265,877,116+1,122,703+23.6%10.35.1%
Jun 30, 20264,754,413+56,880+1.2%6.44.2%

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, 2026270,5231,240878,85430.8%3
Aug 20, 2026353,25175,135907,33438.9%3
Aug 19, 2026357,1894761,417,31825.2%3
Aug 18, 2026555,24963,7341,540,31636.0%3
Aug 17, 20262,386,36332,1885,267,01345.3%3
Aug 14, 202646,1350178,72925.8%3
Aug 13, 2026119,358300367,66332.5%3
Aug 12, 2026107,0810312,11834.3%3
Aug 11, 2026132,1730446,51029.6%3
Aug 10, 2026292,0180818,20535.7%3
Aug 7, 2026446,7147,7991,202,15437.2%3
Aug 6, 202679,2490138,72957.1%3
Aug 5, 2026113,6430133,55685.1%3
Aug 4, 202667,826176116,62458.2%2
Aug 3, 202654,940076,23472.1%3
Jul 31, 202677,818096,92580.3%2
Jul 30, 202628,146056,71749.6%3
Jul 29, 202672,1720111,96164.5%3
Jul 28, 202674,89069128,87258.1%2
Jul 27, 202662,178095,21465.3%2
Jul 24, 202654,7732072,11776.0%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.