Investors bemoan Mifid II best-ex failings

Lack of consistency in data provided by trading venues undermines transparency drive

Data deluge: users struggling to cope with Mifid II trade information overload

Financial market rules forcing trade venues to publish data are failing to improve best execution for investors, say users, amid complaints that the information is hard to collect and compare because it is provided in multiple formats.

The Mifid II regime, which came into force across the European Union at the start of 2018, introduced a raft of laws aimed at improving transparency within the region’s financial markets. Among them is a rule, known as RTS 27, ordering trading venues to publicly