Anyway, over the long term, it's a lousy return," Dalio said. By comparison, wealthy investors aged 44 and older keep 55% of their assets in equities. The survey found that 93% of wealthy younger investors plan to increase their exposure to alternative investments over the next several years. Real estate also continues to rank among the most attractive investments for younger wealthy Americans. Cryptocurrency remains one of the most notable areas where younger and older wealthy investors differ.