The Treasury Market Practices Group announced last week that a margining recommendation for agency MBS initially set to be implemented in June will be delayed until the end of 2013. The provisions apply to primary dealers working with four broad categories of forward-settling agency MBS transactions as part of an effort to manage counterparty exposures. The implementation date was delayed in response to concerns from market participants. Timothy Cameron, managing director and head of the Securities Industry and Financial Markets Association’s asset management group, said buy-side participants need to negotiate agreements for each of their accounts, which can include thousands of documents. “It is clear many market participants will not be able...