FHFA released a "distress-free" HPI in 2012Q2 along with the Highlights article at http://go.usa.gov/8kNJ. The index is a version of the purchase-only index that removes short sales and sales of bank-owned properties from the transactions data used to compute that traditional index. The index is still in a developmental stage. An analysis of how distressed sales affect the FHFA HPI is provided in an FHFA Working Paper released August 2013 at http://go.usa.gov/8kRB.