Data muddle fears follow EC adoption of key Mifid RTS

Industry wants to avoid the emergence of multiple identifiers and is worried ISINs will not be adopted globally for derivatives

Following the European Commission's adoption on July 14 of Regulatory Technical Standard (RTS) 23 of the EU's Markets in Financial Instruments Directive (Mifid II), banks and financial market infrastructures remain concerned over the sourcing of reference data.

Clarity on the source of the data, its format and the frequency of updates will be critical, according to market participants, who are demanding a golden source for the total size of the market, both for products regulated using the