The Mortgage Bankers Association’s Weekly Applications Survey covers more than 75 percent of all retail residential mortgage applications. Last week, the survey found average contract interest rates for 30-year fixed-rate mortgages unchanged from the previous week at 3.76 percent. The average 30-year rate on jumbo loans decreased to 4.03 percent. But despite mortgage rates near record lows, the Market Composite Index, which measures total mortgage application volume, was down 4.5 percent. The drop was due to a 5.0 percent decline in the Refinance Index and a 2.0 percent dip in the Purchase Index. Still, the refinance share of total mortgage activity remained at 81 percent for the week. More here and here.