Performance of Home Affordable Modification Program mods does not vary much between non-agency mortgages and agency mortgages, according to a new analysis by Inside Nonconforming Markets. Performance has been generally lackluster, although differences have emerged among non-prime HAMP servicers. As of the end of March, 1.56 million trial HAMP mods had been started, including 716,006 on non-agency mortgages, according to the Special Inspector General for the Troubled Asset Relief Program. And 670,186 permanent HAMP mods had been started, including 309,027 on non-agency mortgages. Some 46.6 percent of trial mods started on... [Includes one data chart]