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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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PTIX short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float––
Days to Cover1.018,347 average daily volume
Open Short Position13,165Protagenic Therapeutics, Inc.
Change vs Previous+9+0.1%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 202613,165+9+0.1%1.0–
Jul 15, 202613,156+135+1.0%1.0–
Jun 30, 202613,021+25+0.2%1.7–

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, 202640,2750140,56228.7%1
Aug 20, 20269,546040,66023.5%1
Aug 14, 20261,07202,47743.3%1
Aug 11, 20261,00004,74021.1%1
Aug 10, 202618,359048,21538.1%1
Jul 31, 2026402,7780.1%1
Jul 28, 202613,909034,31640.5%1
Jul 27, 20263,500041,5938.4%1

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