FINRA publishes the short interest reports it collects from member firms to help investors gauge the market sentiment surrounding a security or exchange. Prior to June 2021, the data contains short interest positions in over-the-counter securities only and does not reflect short interest data in exchange-listed securities. Archive files going back to 2014 are avilable.About the Data
Each FINRA Trade Reporting Facility (TRF) provides FINRA members with a mechanism for the reporting of transactions effected otherwise than on an exchange. While each FINRA TRF is affiliated with a registered national securities exchange, each FINRA TRF is a FINRA facility and is subject to FINRA's registration as a national securities association.
Trades by FINRA members in Nasdaq-listed
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ATS data has been aggregated on a quarterly basis to display total shares, total trades and average trade size per ATS.2025 Quarterly Tables1st QuarterTier 1 NMS StocksTier 2 NMS StocksAll NMS StocksAll OTC Securities2024 Quarterly Tables1st QuarterTier 1 NMS StocksTier 2 NMS StocksAll NMS StocksAll OTC Securities2nd QuarterTier 1 NMS StocksTier 2 NMS StocksAll NMS StocksAll OTC Securities3rd
The Daily Short Sale Volume Files provide aggregated volume by security for all short sale trades executed and reported to a <a href="/filing-reporting/trade-reporting-facility-trf">TRF</a>, the <a href="/filing-reporting/alternative-display-facililty-adf">ADF</a>, or the <a href="/filing-reporting/over-the-counter-reporting-facility-orf">ORF</a> during normal market hours for public dissemination purposes (i.e., media-reported trades).
Definitions of terms used in Equity Short Interest Data.
About the data
Data field
Definition
Date
The settlement date.
The mid-month short interest report is based on short positions held by members on the settlement date of the 15th of each month. If the 15th falls on a
(a) If a participant of a registered clearing agency has a fail to deliver position at a registered clearing agency in a non-reporting threshold security for 13 consecutive settlement days, the participant shall immediately thereafter close out the fail to deliver position by purchasing securities of like kind and quantity.
(1) Provided, however, if a participant of a registered clearing
Pursuant to applicable trade reporting rules, members must indicate on trade reports submitted to FINRA whether a transaction is a short sale transaction ("short sale reporting requirements"). The short sale reporting requirements apply to transactions in all OTC Equity Securities, as defined in Rule 6420. Thus, all short sale transactions in these securities reported to FINRA must
