New production of agency single-family MBS in November was down 8.2 percent from the previous month, according to a preliminary Inside MBS & ABS analysis. Fannie Mae, Freddie Mac and Ginnie Mae issued a combined $134.70 billion of single-family MBS in November, the lowest monthly total since July. A decline wasn’t unexpected: the housing market is on the downslope of its seasonal trend and rising mortgage interest rates are taking some of the steam out of the refinance market. What is a little unusual is...[Includes two data tables]