The Existing-Home Sales data measures sales and prices of existing single-family homes for the nation overall, and gives breakdowns for the West, Midwest, South, and Northeast regions of the country. These figures include condos and co-ops, in addition to single-family homes.

The Monthly Housing Affordability Index measures whether or not a typical family earns enough income to qualify for a mortgage loan on a typical home at the national and regional levels based on the most recent monthly price and income data.

The Pending Home Sales Index, a leading indicator of housing activity, measures housing contract activity, and is based on signed real estate contracts for existing single-family homes, condos, and co-ops. Because a home goes under contract a month or two before it is sold, the Pending Home Sales Index generally leads Existing-Home Sales by a month or two.

The Quarterly Housing Affordability Index measures whether or not a typical family qualifies for a mortgage loan on a typical home at the national and regional levels based on quarterly price and income data, as well as a look at affordability conditions for first time buyers.