You have been granted access to this page through First Click Free. Subsequent use of TabbFORUM will require logging in. If you don't have an account, registration is free.


  • Rail_thumb_markettech-mark_miller-north_american_t-ware_connect-waks-oct_15_2014

    The Best Defense Is a Strong Offense: The Strategic Value of Compliance

    Mandatory call recording has been forced upon financial services firms by regulators, but the compliance burden also can provide value for firms, insists Mark Miller, head of North America T-Ware Connect. ...
  • Rail_thumb_markettech_2014-mike_hoskins_vid1-actian-wat-oct_15_2014

    Big Data Analytics and Back-Office Alpha

    The analysis of more and richer data yields more-timely and more accurate decisions, notes Actian CTO Mike Hoskins. And while big data analytics have become a staple in the front office, they are just beginning to ...
  • Rail_thumb_aitken

    Examining the Impact of Tick Size on Market Quality

    In mandating price tick sizes, regulators must strike a balance between liquidity, transaction costs and price discovery. While narrower tick sizes allow for reduced transaction costs and more exact price ...

More Video | Podcasts


13 October 2014

Equities LiquidityMatrix™

TABB's Equities LiquidityMatrix™ is a monthly publication consolidating metrics from exchanges, Trade Reporting Facilities (TRFs), Alternative Trading Systems (ATSs) and Single-Dealer Platforms (SDPs).

The Equities LiquidityMatrix™ includes month-over-month SRO market share and the following self-reported statistics from ATSs and Single Dealer Platforms (SDPs): (1) average daily volume; (2) average trade size; (3) stock capitalization distribution %; (4) block and demi-block % (shares); (5) block and demi-block % (notional); (6) Midpoint % (shares).

TABB's September Equities LiquidityMatrix Now Available: Industry Volumes Jump 16%

  • Industry and TABB-Reported ATS/SDP Volumes Rise 16%
    • In September 2014, industry volume and TABB-reported ATS/SDP volume both increased by 16% month-over-month. TABB-reported ATS/SDP volume accounted for 33% of total TRF and ADF volume in September 2014 (see Slide 2 for non-TABB-reporting ATSs).
    • Month-over-month the average daily volume increased to 6.1 billion from 5.2 billion, the lowest average daily volume since December 2006. The intra-month volume peaked on Sept. 19th with 9.3 billion shares due in part to the Alibaba IPO and the triple witching day.
  • FINRA Proposes New Transparency Rules and Postpones Rule 4552 Full Implementation
    • On September 19th, FINRA’s Board of Governors approved a proposed rule expanding ATS transparency rules to the remaining TRF volume.
    • On October 2nd, 2014, FINRA filed a rule change postponing the ATS requirement to use unique MPIDs to report their order and trade information to February 2, 2015.
  • New this month in TABB Equities LiquidityMatrix™
    • Inside NBBO % metrics added for Barclays DirectEx and BIDS

Equities LiquidityMatrix Historical Downloads

You can download archived LiquidityMatrix data as a PDF file. Use the drop-down to select year and month.

For more information of TABB Group's Equities LiquidityMatrix, please contact


And don't miss our Options LiquidityMatrix!

Add a Comment

You must log in to comment.