 Typically, it takes about 2 months for S&P to publish the results, as opposed to 1 month for most other monthly indices and indicators.Specific indexes are available for specific metropolitan areas, and composite indexes for the top 20 and top 10 metro areas, and nationwide.FNC Inc. publishes the Residential Price Index, which is based on data collected from public records blended with data from real-time appraisals of property and neighborhood attributes.