7月29日电，美国5月S&P/CS20座大城市未季调房价指数同比增长2.79%，预期3%，前值3.42%。

Core Insights - The S&P/CS 20-City Composite Home Price Index in the U.S. increased by 2.79% year-over-year in May, which was below the expected growth of 3% and lower than the previous value of 3.42% [1] Summary by Category - Home Price Index Performance - The year-over-year growth of the S&P/CS 20-City Composite Home Price Index was recorded at 2.79% for May [1] - The growth rate fell short of market expectations, which were set at 3% [1] - The previous year's growth rate was higher at 3.42% [1]