Mortgages modified by Fannie Mae performed slightly better than Freddie Mac loans in the short term although the performance gap between the two GSEs remained relatively narrow one year after modification, according to the Office of the Comptroller of the Currency.The OCC Mortgage Metrics Report for the First Quarter of 2012 noted that Fannie loans had an 11.4 percent re-default rate three months after modification, while Freddie mods saw a 12.3 percent rate. At the six-month mark, Fannie stood at 18.3 percent compared to Freddie’s 18.6 percent.