Sector ETFs to Gain Real Estate – Kelly Residential & Apartment Real Estate ETF (RESI) Weighted shelter makes up 32.77% of CPI, of which 7.8% is rent and 23.68% is private housing, per data from MacroMicro. The underlying Strategic Residential & Apartment Real Estate Sector Index is a rules-based index that consists of U.S. and Canada-listed companies engaged in Apartment Buildings, Single-Family Rental Homes, Student Housing or Manufactured Homes. Zacks’ free Fund Newsletter will brief you on top news and analysis, as well as top-performing ETFs, each week.