A new housing price index shows home prices rising nationally. Here's what that number actually tracks.

Originally reported as: “Residential real estate price index climbs year-on-year as gains broaden beyond major metros”

A newly released housing price index showed home prices climbing nationally over the past year, with the sharpest gains concentrated in a handful of fast-growing cities. A price index doesn't track the price of any single house. Instead, it measures how the overall cost of housing has changed relative to a fixed starting point, using a basket of comparable properties so the number reflects genuine price movement rather than just a shift in which kinds of homes happened to sell that quarter. Even for people with no plans to buy, a rising index tends to filter into rents and the broader cost of living, which is why it's tracked as a mainstream economic indicator rather than just a real estate curiosity.