The Mortgage Bankers Association is pushing a proposal to change the remittance schedule on Freddie Mac participation certificates and make them fully fungible with Fannie Mae pass-through MBS for good delivery under to-be-announced guidelines. The proposal would address the historical discount to Fannie MBS at which Freddie securities trade, said MBA President Dave Stevens during the groups National Secondary Market Conference in New York this week. Freddie PCs typically trade 1 or 1.5 points behind Fannie MBS, a difference that Freddie Mac and ultimately U.S. taxpayers, now that the government-sponsored...