The CFTC, which can bring only civil legal action, is said to have alerted the Justice Department to criminal behavior behind manipulation of ISDAfix.

Agency will bolster examinations of clearinghouses for swaps trades to ensure they don't create new threats to stability of financial markets.

OCC puts cost to banking industry of new swaps rules between $2.9 billion and $6.4 billion annually.

Draghi says European Central Bank will embark on purchase of asset-backed securities, with details to be announced in October.