Short Volume Lookup

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Date Hi Lo Total Volume Short Volume % Short Vol
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Date Hi Lo Total Volume Short Volume % Short Vol


The Short Volume Lookup provides daily and historical REGSHO short volume data published by FINRA for stocks traded on the NYSE, NASDAQ, OTC and Pinksheet markets. Daily REGSHO is usually updated at 5:30 PM Eastern. Mighty Markets LLC., receives daily short volume from No guarantees are made to the accuracy of results and no financial decisions should be based upon these results.

Table of Contents

  1. Daily Short Volume Lookup
  2. 1. What is REGSHO
    1. 1.2 Understanding the Daily REGSHO report
    2. 1.3 What it is and is not
  3. 2. Daily REGSHO Volumes
    1. 2.1 Short
    2. 2.3 TRF Total
    3. 2.4 Exempt Short
    4. 2.5 Total
    5. 2.6 Adjusted
  4. 3. Additional Daily Data
    1. 3.1 Date
    2. 3.2 Hi/Lo
    3. 3.3 Total Dollar Volume
    4. 3.4 Number of Trades
    5. 3.5 Trading Status
    6. 3.6 CUSIP

1. What is REGSHO

Regulation SHO was introduced in the Securities Exchange Act Release No. 50103 and became effective as of on September 7, 2004 but did not become mandatory until January 3, 2005. REGSHO was adopted to provide market transparency, regulation, and specifically prevention of "Naked Short Selling". REGSHO has two specific parts, Rule 200 and Rule 203.

  • Rule 200 - Definitions and Marking Requirements.

This rule provides a few technical requirements for market makers and broker-dealers but has a major requirement concerning the marking of shares sold. It specifies shares sold during trading to be identified and marked as being sold "long," "short," or "short exempt."

  • Rule 203 - Locate and Delivery Requirements.

This rule clearly defines that broker-dealers, before making short sales in any equity securities, must locate the securities available first, before borrowing. This is in order to be able to deliver the securities on the settlement date. The second part of this rule imposes requirements on broker-dealers which have had substantial amounts of failures to deliver for securities.

1.2 Understanding the Daily REGSHO report

At the end of each trading day, a RegSHO report is submitted to FINRA by each of its Trade Reporting Facilities (TRF). A TRF, according to FINRA, "provides FINRA members with a mechanism for the reporting of transactions effected otherwise than on an exchange." More information about them can be found here. FINRA Trade Reporting Facility

Simply put, a TRF is a way to report security transactions that happen on registered national exchanges, quotation systems, or other platforms. Currently there are 3 RegSHO reports generated for the NASDAQ, NYSE, and OTC Markets and Others.

Each report lists the total amount of volume of shares traded for each identification marker, "short", "short exempt", and "long" per security.

1.3 What it is and is not

It is highly contested whether or not the daily RegSHO reports that a security has been "shorted", as having a short position, or if it is just a type of reporting requirement for market making activities. It is both. Transactions that have shares marked as "short" can very well be an investor selling a short position or a market maker allocating shares in order to provide liquidity but not in their possession. The Division of Market Regulations of the SEC has an exhaustive, yet technical, overview of what RegSHO provides. Further information can be found at Key Points About Regulation SHO

2. Daily REGSHO Volumes

2.1 Short Volume

This is the combined number of shares traded and marked as "short" or "short exempt" for the specified security from all reporting TRF's.

2.2 TRF Total

This is the combined total number of shares traded on all TRF's for the specified security which include trades marked as "long".

2.3 Exempt Short

This is the combined total number of shares traded and marked as "short exempt" for the specified security from all reporting TRF's.

2.4 Total

This is the total number of shares traded for the specified security from all reporting facilities combined. This is most commonly known as total volume and includes share volume traded from other reporting facilities such as private brokerages, trading firms, etc. as well as the 3 main FINRA TRF's.

2.5 Adjusted

This is the total volume of shares marked "short" minus the total number of shares marked "short exempt".

This definition only applies to the data published on this website and is not provided by RegSHO. The data published on this websites combines and aggregates data from all 3 reports as well as perform computations on numbers in those reports.

3. Additional Daily Data

This data is daily and historical information provided alongside RegSHO information for the specified security. This information is not published or reported by FINRA RegSHO. This data is aggregated and compiled from public sources and many times is estimated when the data is not available.

3.1 Date

The trade date of which the corresponding data took place.

3.2 Hi/Lo

The highest and lowest price per share during regular trading hours for the specified security.

3.3 Total Dollar Volume

The total dollar amount traded for the specified security. * This is often estimated by averaging between a securities daily Hi and Lo multiplied by the amount of shares traded.

3.4 Number of Trades

The total number of trades executed for the specified security.

3.5 Trading Status

The current or end of day trading status for the specified security reported as "R" for regular/normal or "S" for suspended/halted.


A unique indentifying number for all stocks and bonds assigned by the Committee on Uniform Securities Identification Procedures (CUSIP).