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

A-Team Insight Blogs

Giving Away the Value of Reference Data

Subscribe to our newsletter

By Chris Pickles, Co-Chair of FIX Trading Community’s Reference Data Subgroup and Member of the Bloomberg Open Symbology Team

Reference data is not only a foundation of data management, it is also a revenue earning commodity, particularly for exchanges and issuers of ISINs. MiFIR requires exchanges, multilateral trading facilities, organised trading facilities and systematic internalisers to deliver defined reference data to national regulators for every financial instrument that is admitted to trading on their venue. It doesn’t matter if the instrument ever trades on that venue; if it is admitted to trading, the reference data has to be delivered.

A first surprise about ESMA’s approach to reference data was its decision to mandate the use of ISINs alone for transaction reporting, particularly after ESMA itself made it clear that it understood that ISINs aren’t widely used by the industry for instruments such as derivatives. Also, ISINs are often fee liable in one form or another.

ESMA has now delivered a second surprise by clarifying that it will be making all of the reference data available via its website, not only to national regulators in the European Union, but to the whole world.

The reference data in question generally has ownership rights and/or intellectual property rights attached to it. It is created by issuers, trading venues and domestic numbering agencies, and it is licensed to users and vendors either on its own or within packages of data. ESMA has said MiFIR requires ESMA to publish all of this reference data and that ‘publish’ means ‘to everyone’. But MiFIR does not say that ESMA has to take and give away all of the data for free, which is particularly relevant when it belongs to other parties.

Both MiFID I and MiFID II require investment firms to publish trade data, but allow them to do so on a ‘reasonable commercial basis’. ESMA is not making it clear if, and how, it intends to address this same issue for reference data, in terms of licensing, fee liability, access control, billing and revenue sharing.

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: The ROI of Data Trust: Quantifying the Business Value of Data Observability

Data is the fuel that keeps modern financial institutions’ motors running but if that data can’t be trusted then the decisions made based upon it, or the uses to which its put, will be compromised. That’s especially important for data that’s fed into artificial intelligence models. If the data isn’t clean, accurate and complete, then...

BLOG

MiFID II Research Reforms Put Joint Payments Back on the Buy-Side Agenda

June 6, 2026, marks the start of a new phase in Europe’s research-payment regime, with MiFID II reforms allowing investment managers to use joint-payment arrangements for execution and external research. The change gives buy-side firms more flexibility after years of research unbundling, but it also tests whether firms can rebuild the commission-management, governance and evidence...

EVENT

ExchangeTech Summit London

A-Team Group, organisers of the TradingTech Summits, are pleased to announce the inaugural ExchangeTech Summit London on May 14th 2026. This dedicated forum brings together operators of exchanges, alternative execution venues and digital asset platforms with the ecosystem of vendors driving the future of matching engines, surveillance and market access.

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...