Fannie Mae and Freddie Mac saw a huge jump in deliveries of purchase-money mortgages during the third quarter, although the first-timer share of the market fell slightly. The two government-sponsored enterprises securitized $140.75 billion of purchase mortgages during the third quarter, an increase of 26.4 percent from the previous three-month period. Purchase loans accounted for 62.9 percent of loans sold into GSE mortgage-backed securities during ... [Includes two data charts]