The average rate on the 30-year fixed mortgage rose slightly this week, following increases in bond yields.
Freddie Mac says the average rate rose to 4.80 percent this week from 4.74 percent the previous week. It hit a 40-year low of 4.17 percent in November.
The average rate on the 15-year loan inched up to 4.09 percent from 4.05 percent. It reached 3.57 percent in November, the lowest level on records starting in 1991.