Freddie Prices First Risk-Sharing Transaction of 2014. Freddie Mac this week announced a $1 billion offering of its Structured Agency Credit Risk debt notes. The deal is backed by 140,000 residential loans, representing an unpaid principal balance of approximately $32.4 billion. This STACR pool consists of 30-year fixed-rate single-family mortgages acquired by Freddie in the second quarter of 2013.More than 65 investors participated in the offering, Freddie said.