美国房贷利率跌至近四年最低，但购房者仍持观望态度

Core Insights - The recent significant decline in U.S. mortgage rates has not boosted home buying demand, despite supporting refinancing activity [1][2] Group 1: Mortgage Rates and Applications - The average contract rate for a 30-year fixed mortgage decreased from 6.17% to 6.09%, marking the lowest level since September 2022 [1][2] - Overall mortgage application volume remained stable with a slight increase of 0.4% compared to the previous week [1][2] - Refinance applications rose by 4% week-over-week and surged by 150% year-over-year, although last year's refinancing volume was notably low [1][2] Group 2: Home Purchase Demand - Home purchase mortgage applications fell by 5% week-over-week but were still 12% higher year-over-year [3] - Despite lower mortgage rates improving affordability, home prices remain slightly above last year's levels, contributing to consumer caution due to economic uncertainty [3] Group 3: Adjustable Rate Mortgages (ARMs) - There is an increasing demand for adjustable-rate mortgages (ARMs), which offer lower rates but come with higher risks [4] - ARM rates are over 80 basis points lower than compliant fixed rates, maintaining an application share of over 8% [4]