Freddie Mac continued to outspend rival Fannie Mae in the mortgage and MBS market during the third quarter, but the latter government-sponsored enterprise appears ready to resume buying more aggressively. Although Fannie’s retained portfolio continued to decline during the third quarter, falling to $727.72 billion as of the end of September, the company stepped up its new business volume and new MBS issuance. The company’s regulator also confirmed this week that Fannie has met the… [One data table included]