U.S. home prices cooled in July at the fastest rate in the history of the S&P CoreLogic Case-Shiller Index, according to a report released Tuesday. Home prices in July were still higher than they were a year ago but cooled significantly from June gains. Prices nationally rose 15.8% over July 2021, well below the 18.1% increase in the previous month, according to the report. The 10-City composite, which tracks prices in major metropolitan areas such as New York and Boston, climbed 14.9% year over year, down from 17.4% in June. The 20-City composite, which adds regions such as the Seattle metro area and greater Detroit, gained 16.1%, down from 18.7% in the previous month. July’s year-over-year gains were lower compared with June in each of the cities covered by the index.