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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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RBBN short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float4.4%92,511,000 float shares
Days to Cover4.9832,505 average daily volume
Open Short Position4,034,032Ribbon Communications Inc. Com
Change vs Previous-127,531-3.1%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 20264,034,032-127,531-3.1%4.94.4%
Jul 15, 20264,161,563+511,700+14.0%5.14.5%
Jun 30, 20263,649,863-178,338-4.7%4.23.9%

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, 2026275,548450514,65353.5%3
Aug 20, 2026158,1901,207421,98037.5%3
Aug 19, 2026122,8050429,55028.6%3
Aug 18, 2026140,5975227,08861.9%3
Aug 17, 202677,24216131,49058.7%3
Aug 14, 2026105,35136214,40849.1%3
Aug 13, 2026109,268595255,30242.8%2
Aug 12, 202683,8920155,81353.8%3
Aug 11, 2026141,3031,241364,69638.7%2
Aug 10, 2026113,526414212,22453.5%2
Aug 7, 202684,6690242,16635.0%2
Aug 6, 2026177,9360307,80457.8%3
Aug 5, 2026190,71427304,95862.5%3
Aug 4, 202686,0180170,67150.4%3
Aug 3, 202672,394147173,90341.6%3
Jul 31, 2026134,77347309,03443.6%3
Jul 30, 2026158,46449261,98060.5%3
Jul 29, 2026370,1515,990690,47053.6%3
Jul 28, 2026257,554102411,86262.5%3
Jul 27, 2026159,6150306,69652.0%3
Jul 24, 2026159,429836313,70250.8%2

Daily short volume is transaction flow reported through FINRA facilities. It does not measure open short positions and is not consolidated exchange-wide volume.