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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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PACB short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float16.1%304,061,000 float shares
Days to Cover7.46,666,706 average daily volume
Open Short Position49,004,841Pacific Biosciences of Califor
Change vs Previous+2,767,205+6.0%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 202649,004,841+2,767,205+6.0%7.416.1%
Jul 15, 202646,237,636-1,252,568-2.6%10.015.2%
Jun 30, 202647,490,204-13,069,934-21.6%6.515.6%

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, 20261,236,44711,6473,650,89733.9%3
Aug 20, 2026936,1964612,302,32940.7%3
Aug 19, 20261,544,5708696,096,34725.3%3
Aug 18, 20261,734,31114,6232,816,54461.6%3
Aug 17, 20261,726,86803,554,56448.6%3
Aug 14, 2026956,26002,169,76844.1%3
Aug 13, 20261,155,68983,112,91637.1%3
Aug 12, 20264,187,22752,9066,917,63860.5%3
Aug 11, 20261,895,95638,6873,681,26451.5%3
Aug 10, 20262,060,01622,3443,867,81053.3%3
Aug 7, 20261,793,403252,5094,387,19840.9%3
Aug 6, 20265,604,488573,2509,470,56359.2%3
Aug 5, 20263,751,37940,1006,485,16457.8%3
Aug 4, 20261,252,7206,2503,193,65939.2%3
Aug 3, 20261,137,0513,0001,693,65167.1%3
Jul 31, 2026749,5625,5001,249,42960.0%3
Jul 30, 2026573,12901,261,11145.4%2
Jul 29, 20261,530,26024,3864,132,34537.0%3
Jul 28, 20261,973,0305,3004,791,36141.2%3
Jul 27, 20261,366,76815,6764,233,46232.3%3
Jul 24, 20262,727,0215,1314,765,83857.2%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.