About a-team Marketing Services
The knowledge platform for the financial technology industry

A-Team Insight Blogs

US Consolidated Audit Trail Swings into Action

Subscribe to our newsletter

The US Consolidated Audit Trail (CAT) swung into action last week after long delays and in a limited way, with members of self-regulatory organisations (SROs) within the CAT NMS (National Market System) Plan, except small SRO members, starting to report to the central repository.

Early reporting follows the end of October publication by Thesys CAT, operator of the CAT, of long-awaited reporting technical specifications. SROs are initially reporting quote, order, trade and other information required under the CAT NMS Plan, although Thesys CAT has yet to complete all the capabilities of first phase reporting. It has advised the SROs that it is continuing to work on outstanding elements, such as the regulators’ query functionality and links between reported events, and plans to complete the full functionality required by the CAT NMS Plan for the first reporting phase on or before March 31, 2019.

While SRO members started to submit data to the CAT on November 15, 2018, small SRO members must follow suit on November 15, 2019.

The CAT is intended to allow regulators to improve securities’ market surveillance by creating an extensive audit trail of customer and order event information for all orders in US exchange-listed and over-the-counter (OTC) equity securities across all markets and trading venues. It is also meant to collect data for exchange-listed options contracts. If implementation of the CAT is completed fully and successfully, which is a mighty challenge for all concerned, it is expected to be the largest data repository of information on securities transactions in the world.

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: FRTB Implementation in APAC: An industry update and what is left to do

Fundamental Review of the Trading Book (FRTB) regulation, a set of proposals from the Basel Committee on Banking Supervision (BCBS) for a new market risk-related capital requirement for banks, is due to be implemented across APAC over the next few years. Singapore and Japan, by way of example, have set implementation deadlines in 2024, while...

BLOG

Waystone Positions ManCo Platform as Infrastructure for Global Fund Expansion

For asset managers expanding into new markets, launching funds across jurisdictions means navigating different supervisory expectations, different disclosure regimes, different distribution rules and different interpretations of similar underlying obligations. The operational burden is growing at the same time as managers remain under pressure to control costs, protect margins and bring products to market faster. That...

EVENT

RegTech Summit London

Now in its 10th year, RegTech Summit London will bring together the RegTech ecosystem to explore how the European capital markets financial industry can leverage technology to innovate the compliance function and response.

GUIDE

AI in Capital Markets Handbook 2026

AI adoption in capital markets has moved into a more disciplined phase. The priority is now controlled deployment: where AI can be used safely, where it can deliver measurable value, and how outputs can be governed, monitored and evidenced. The 2026 edition of the AI in Capital Markets Handbook examines how AI is being applied...