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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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TNDM short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float17.6%63,822,000 float shares
Days to Cover6.61,708,562 average daily volume
Open Short Position11,242,544Tandem Diabetes Care, Inc. Com
Change vs Previous-1,872,664-14.3%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 202611,242,544-1,872,664-14.3%6.617.6%
Jul 15, 202613,115,208+384,135+3.0%8.720.5%
Jun 30, 202612,731,073+1,876,823+17.3%5.619.9%

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, 2026478,5330988,06848.4%3
Aug 20, 2026337,6005751,64344.9%3
Aug 19, 2026366,7800802,40545.7%3
Aug 18, 2026485,8406431,259,21638.6%3
Aug 17, 2026384,916962569,04067.6%3
Aug 14, 2026548,07469,938876,70962.5%3
Aug 13, 2026301,4934,321586,00251.4%3
Aug 12, 2026394,5281,506641,90961.5%2
Aug 11, 2026463,9354,962773,44560.0%3
Aug 10, 2026395,5721,191806,74649.0%3
Aug 7, 20261,392,2392,5702,318,18060.1%3
Aug 6, 2026596,7085771,915,52431.2%3
Aug 5, 20261,023,26857,7011,612,00563.5%3
Aug 4, 2026563,063481,373,61541.0%3
Aug 3, 2026488,54701,464,61233.4%3
Jul 31, 2026478,0211781,66561.2%3
Jul 30, 2026534,135751914,06958.4%3
Jul 29, 2026357,9509,493800,86044.7%3
Jul 28, 2026407,9950625,06665.3%3
Jul 27, 2026369,673867489,92275.5%3
Jul 24, 2026448,747952543,75682.5%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.