Aiming to eat a larger share of the alternative mortgage market pie, Freddie Mac has boosted the loan-to-value ceiling on most of its interest-only loan products. The changes to Freddie’s Initial Interest program, outlined in Bulletin 2006-1, appear designed to keep the GSEs’ mortgage program competitive at a time when lenders are pushing the envelope with new affordable mortgage products. Data compiled by Inside Alternative Mortgages show that Freddie significantly stepped up its presence in…