Rules could result in exemption for half of the trading volume.

European Commission official's comments show deregulatory push could have global implications.

European Union is sticking to its March 1 deadline for variation margin.

European Union is sticking to its March 1 deadline for variation margin.

CFTC Chairman Massad says hes sympathetic to clearing concerns.

CFTC chairman drew criticism for pushing rules as term neared end.

CFTC chairman drew criticism for pushing rules as term neared end.

Europe pushes back against including a capital floor in reforms.