Transparency in Short Selling
FINRA's daily short sale volume files offer a transparent look at aggregated volume by security for trades reported to FINRA facilities. This data is crucial for compliance and market analysis, covering trades executed during regular market hours.
Important Distinctions
It is a common misconception that these files represent short interest. Short interest is a snapshot of open positions on specific dates, whereas the daily files represent the aggregate volume of trades marked short. Users must combine data from separate files for the TRFs and the ADF to get a complete view of the reported volume.
Key Takeaways
- Data Source: FINRA Trade Reporting Facilities (TRF/ADF).
- Frequency: Daily, published by 6 PM ET.
- Scope: Publicly disseminated trades only.
- Limitation: Does not include non-public trading activity.
The Bottom Line
FINRA's daily short sale volume data is a cornerstone of market transparency, provided users correctly distinguish between daily flow and open short interest.
Signal data sourced from FINRA. This post is an original analysis prepared by The Forensic Ledger from publicly available data. Not investment advice.
Not investment advice. This is original reporting and analysis prepared by The Forensic Ledger from publicly available data. Nothing here is a recommendation to buy, sell, or hold any security. Always consult the original source and a licensed professional. See our full disclaimer and source-citation policy.