Combined servicing volume for the top 50 Ginnie Mae MBS servicers jumped to $1.23 billion in the first quarter of 2012 from $1.11 billion during the same period a year ago – an 11.2 percent increase on a year-over-year basis, according to the Inside Mortgage Finance MBS Database. The quarterly change was a modest 1.7 percent increase from $1.21 billion in the fourth quarter of 2011, data showed. Wells Fargo and Bank of America accounted for 53.5 percent of total Ginnie Mae servicing in the first quarter, with $361.1 million and $302.1 million, respectively. Year-over-year, top-ranked Wells Fargo (29.1 percent market share) saw a ... (1 chart)