Though I didn't specify the portfolio composition, most of my holding are US Large Cap, which are the 2nd best performing asset class below small cap: https://www.compoundvalue.com/wp-content/uploads/2013/10/IR_..., but both classes are significantly above the others (Bonds & T bills), so I'm not sure what's meant by low returns. If you mean sequence of returns risk, most people use a bond tent to mitigate the risk.