The secondary market agency said purchases fell to $33.6 billion in December from $62.5 billion in the month prior.
Refinancings represented 67% of purchases and 32% of those $22.5 billion in refis were HARP refinances. In November, 74% of purchases were refinancings.
Friday’s report also shows that MBS issuance by Freddie Mac dropped 50% from November to $30.1 billion in December.
The serious delinquency rate on Freddie’s loan portfolio was unchanged at 3.25%.