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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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PBYI short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float10.4%39,624,600 float shares
Days to Cover13.9297,127 average daily volume
Open Short Position4,126,395Puma Biotechnology Inc Common
Change vs Previous+217,015+5.5%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20264,126,395+217,015+5.5%13.910.4%
Jul 15, 20263,909,380+280,902+7.7%10.79.9%
Jun 30, 20263,628,478-70,318-1.9%8.59.2%

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, 202648,438065,57973.9%2
Aug 20, 202660,6320114,13153.1%3
Aug 19, 202657,005078,32672.8%3
Aug 18, 202661,98660190,26668.7%2
Aug 17, 202645,613064,70770.5%3
Aug 14, 202650,66840074,01368.5%2
Aug 13, 202661,254084,95872.1%3
Aug 12, 202652,589084,63362.1%3
Aug 11, 202663,5110103,40261.4%3
Aug 10, 202653,1450119,47544.5%3
Aug 7, 2026127,7870219,12658.3%3
Aug 6, 202688,1110111,81178.8%3
Aug 5, 202651,820071,89672.1%2
Aug 4, 202658,0810101,76957.1%2
Aug 3, 202678,7480124,61863.2%2
Jul 31, 202668,9810101,63067.9%3
Jul 30, 202662,939087,09172.3%3
Jul 29, 202644,347068,72464.5%2
Jul 28, 202672,328200118,98560.8%3
Jul 27, 202628,2633145,81661.7%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.