As of the midway point in 2013, Fannie Mae and Freddie Mac were only slightly ahead of the pace they will need to maintain this year to reach portfolio-shrinkage targets set by their regulators, according to a new Inside MBS & ABS analysis. Under the revised terms of their bailout agreements, the two government-sponsored enterprises are required to reduce their retained portfolios by 15.0 percent by the end of this year. Through the first six months of 2013, the GSEs had shrunk their mortgage portfolios by 8.7 percent. But the Federal Housing Finance Agency has also directed...[Includes one data chart]