实时更新： iPath Pure Beta Broad [BCM]

The Barclays Commodity Index Pure Beta Total Return (the "index") is comprised of a basket of exchange traded futures contracts and reflects the returns that are potentially available through an unleveraged investment in the futures contracts on certain physical commodities. For each commodity, the index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.