The world’s largest clearing houses are ramping up their efforts to offer direct access to buyside firms, in a bid to fill the void left by banks retreating from the clearing business due to punitive capital charges.

Eurex, CME Clearing and LCH.Clearnet are among those looking at ways to expand membership amid the continuing worries about the impact of the tough new capital rules on clearing brokers, according to speakers at the annual FIA Futures and Options Expo in Chicago.