The following section reviews the indices real returns defined as the differences between the nominal returns and the monthly corresponding Consumer Price Index (CPI) rate.
From their start dates on, the US Treasury, Mortgage-Backed Securities, Corporate Investment Grade and Aggregate indices have averaged real returns of 2.1%, 2.3%, 2.8% and 2.3% respectively. US High Yield and USD Emerging Markets Indices, which started a decade later, were again the largest outperformers at 5.1% and 5.3%. The Euro Aggregate had the lowest real return at 1.1%.