Understanding Daily Short Sale Flow
FINRA's Daily Short Sale Volume files remain the primary source for tracking daily short-selling pressure in the US equity markets. Unlike bi-weekly short interest reports, which provide a snapshot of open positions, these daily files capture the flow of short sales executed and reported to FINRA trade reporting facilities (TRFs), the ADF, or the ORF. This data is essential for analysts looking to identify spikes in short-selling activity on a per-ticker basis.
Data Utility for Analysts
By aggregating volume for trades reported during normal market hours, these files allow for the identification of days with unusually high short-selling volume. While this does not directly equate to an increase in open short interest, a sustained spike in daily short volume percentage often precedes changes in official short interest figures. Analysts should combine this flow data with other metrics, such as borrow fees and utilization rates, to build a comprehensive view of the bearish sentiment surrounding a specific security.
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.