Regarding the latter point, which may be crucial after the Consumer Price Index jumped in April and May, the model portfolio features two commodities exchange traded funds, one of which is the diverse WisdomTree Enhanced Commodity Strategy Fund (GCC). The Siegel-WisdomTree Longevity Model Portfolio is appropriate for advisors serving clients that need to trim some equity exposure, those need some additional income, and those looking for some protection from inflation. That task is getting trickier in today's low-yield environment, but the Siegel-WisdomTree Longevity Model Portfolio augments some of that risk.