In February 2016, the city of Denver and eight private investors closed on the city’s first social impact bond (SIB), an $8.6 million investment to fund a supportive housing program for 250 of the city’s most frequent users of the criminal justice system. The city will make outcome payments over five years based on the initiative’s goals of housing stability and decreased jail days. This report details the second assessment of housing stability payment outcomes and interim housing stability outcomes for the program.