Fannie Mae and Freddie Mac mortgage-backed securities remained the preferred investment choice of the Federal Home Loan Banks during the fourth quarter of 2011, with a minor decline posted from the previous quarter, according to a new analysis by Inside The GSEs based on data from the Federal Housing Finance Agency. Ginnie Mae securities likewise posted a decline within the 12 FHLBank system during the three-month period ending Dec. 31, 2011. GSE MBS accounted for 69.6 percent of combined FHLBank MBS portfolios, down 2.1 percent from the third quarter of 2011. The Finance Agency’s data do not separately break out Fannie and Freddie volume or share.