Commodity market in Sumer between 4500 BC and 4000 BC. Sumerians first used clay tokens sealed in a clay vessel, then clay writing tablets to represent the amount—for example, the number of goats, to be delivered. These promises of time and date of delivery resemble futures contract. Early civilizations variously used pigs, rare seashells, or other items as commodity money. Since that time traders have sought ways to simplify and standardize trade contracts. Gold and silver markets evolved in classical civilizations. At first the precious metals were valued for their beauty and intrinsic worth and were associated with royalty. In time, they
Deutsche Bank Liquid Commodity Index Deutsche Bank Liquid Commodity Index The Deutsche Bank Liquid Commodity Index (DBLCI) was launched in February 2003. It tracks the performance of six commodities in the energy, precious metals, industrial metals and grain sectors. The DBLCI has constant weightings for each of the six commodities and the index is rebalanced annually in the first week of November. Consequently, the weights fluctuate during the year according to the price movement of the underlying commodity futures. Energy contracts are rolled monthly, all other commodity futures contracts are rolled annually. This rolling procedure was adopted given the historical tendency for energy curves to