Streamline refinancing helped boost FHA origination volume as lenders reported substantial increases on monthly and year-over-year bases, according to Inside FHA Lending’s latest analysis of FHA data. Despite increases in mortgage insurance premium and other policy changes aimed at reducing FHA market share and strengthening the Mutual Mortgage Insurance Fund, FHA endorsements were up 18.7 percent in January 2013 from December 2012, and a hefty 38.7 percent from January last year. However, FHA refis accounted for 54.3 percent of total production while purchase mortgages made up ... [1 chart]