The HPI is calculated using home sales price information from mortgages sold to, or guaranteed by, Fannie Mae and Freddie Mac.
"Home price growth in the second quarter once again far exceeded the pace of overall inflation, even as mortgage rates drifted upwards," said FHFA Principal Economist Andrew Leventis. "Although too early to tell whether it's a sign of a slowdown, the monthly appreciation rate in June was more modest than we have seen in a while."
The seasonally adjusted, purchase-only HPI rose 5.4 percent from the second quarter of 2014 to the second quarter of 2015, while prices of other goods and services fell 1.4 percent. The inflation-adjusted price of homes thus rose approximately 6.9 percent over the latest year.
- Home prices rose in every state between the second quarter of 2014 and the second quarter of 2015. The top five areas in annual appreciation: 1) Colorado – 10.6 percent, 2) Nevada – 10.5 percent, 3) Florida – 9.7 percent, 4) Hawaii – 9.5 percent, and 5) Washington – 8.8 percent.
- Among the 100 most-populated metropolitan areas in the U.S., four-quarter price increases were greatest in San Francisco-Redwood City-South San Francisco, CA (MSAD), where prices increased by 18.3 percent. Prices were weakest in the Allentown-Bethlehem-Easton, PA-NJ, where they fell -1.1 percent.
- Of the nine census divisions, the South Atlantic division experienced the strongest increase in the second quarter, posting a 1.7 percent quarterly increase and a 6.1 percent increase since last year. House price appreciation was weakest in the Middle Atlantic division, where prices were flat in the second quarter.
Most statistics in the attached release reference price changes computed by FHFA's basic "purchase-only" HPI. In some cases, however, the reported statistics reference alternative price measures. FHFA publishes – and makes available for download – three additional varieties of home price index beyond the basic "purchase-only" series. Although they all use the same basic methodology, the three alternatives rely on slightly different datasets in index estimation.
The alternative measures include:
- "Distress-Free" house price indexes. Sales of bank-owned properties and short sales are removed from purchase-only dataset prior to estimation of the indexes.
- "Expanded-Data" house price indexes. Sales price information sourced from county recorder offices and from FHA-endorsed mortgages are added to the purchase-only data sample.
- "All-Transactions" house price indexes. Appraisal values from refinance mortgages are added to the purchase-only data sample.