At the end of the transition period, the first weekly public reported data for the EU EMIR TR (outstanding positions and transactions activity reported to DDRIE) and UK EMIR TR (outstanding positions and transactions activity reported to DDRL) will be published weekly from 12th January 2021.
As of this date the method of calculation for the public reports means that it is not possible to simply combine the two datasets to produce an amalgamated total for EU EMIR and UK EMIR reporting.
For example an outstanding contract where both sides have been reported to DTCC between a UK-domiciled entity and an entity in a different EU jurisdiction would have been shown under "dual-sided" reporting but listed as a single trade. Post Brexit, this trade will be shown in the single sides bucket of both DDRL and DDRIE
DTCC Data Repository (Ireland) PLC (DDRIE)
Global Trade Repository