The Wall Street Journal
As investors worry that we are entering an extended period of at-best-mediocre stock and bond returns, some are wondering if diversifying into commodities is the answer. Consider a conservative portfolio that, instead of allocating 60% to the S&P 500 and 40% to investment-grade bonds, takes 5% from both assets and allocates the 10% to ETF (DBC). A similar conclusion applies to a portfolio that instead invested the 10% commodity allocation in a different commodity index fund, ETF (GSG), which invests in most of the same commodities included in the DBC fund, but with a different weighting protocol.