Weighting The Dow Jones Commodity Index includes 23 of the commodities included in the broad, world production weighted S&P GSCI, but it weights each of the three major sectors - Energy, Metals, Agriculture and Livestock - equally. The Index's construction is meant to be simple in order to facilitate its use as an equally weighted beta, or to serve as a building block for modifications. The Dow Jones Commodity Index is rebalanced quarterly.