iPath Bloomberg Commodity Index Total Return ETN(AMEX:DJP)

DJP is a broad basket commodity ETN that tracks an index with varying contract lengths and roll schedules. There are 24 different commodity contracts eligible for inclusion. The index uses both liquidity- and US dollar-weighted production data to determine the relative quantities of included commodities. Additionally, the index attempts to embody four main principles in its construction: economic significance, diversification, continuity, and liquidity. Using these metrics, the index attempts to create a fair representation of each commoditys importance to the world economy and to filter out unwarranted weightings for commodities. In addition to these factors, the index adds a 33% cap to commodity sectors and a 15% cap to individual commodities. The index is rebalanced annually.