Home buyers are flocking to fixed-rate mortgages.

Falling interest rates have made fixed-rate mortgages the most popular way to finance the purchase of a home, according to a survey by the Mortgage Bankers Assn. of America. The survey of 20 of the nation’s largest mortgage companies showed that 93.5% of the home loans originated during the last week of July were fixed-rate mortgages. Fixed-rate mortgages have increased in popularity since the summer of 1984, when adjustable-rate mortgages accounted for 36% of privately originated mortgages.