CME Group has defended its opposition of the CFTC's segregation rule.
The Chicago exchange challenged the decision by the Commodity Futures Trading Commission to bring forward a rule that prohibits clearing organisations from using the collateral of non-defaulting customers.
The move was triggered by the collapse of MF Global which is being investigated by the regulator and the FBI after customer funds could not be accounted for.
CFTC commissioner Bart Chilton had described the collapse as a "wake-up call" and the agency moved quickly to plug what officials saw as a serious gap.
However, even...