Useful piece from IFR on how the capital charges for uncleared trades are driven by portfolio size (see snippet below), and therefore why continuing to use TriOptima to tear-up trades will be even more important, as it will directly reduce capital charges. Full article here (free I think).

“For counterparty exposures subject to zero threshold CSAs, a dealer’s capital charges will be based on its 10-day value-at-risk exposure calculation for netting sets of less than 5,000 trades and the 20-day VAR exposure for sets of more than 5,000. This should encourage dealers to reduce their outstanding trades through compression – an incentive that also applies to trades within CCPs, which are subject to 2% capital risk weightings.”