The U.S. dollar index is a basket of six major world currencies stacked up against the greenback. See on the daily bar chart for the September USDX futures that prices have backed well down from the recent contract high, including negating a price uptrend in the process, to suggest that a near-term market top is in place. A weaker dollar on the world foreign exchange market is a bullish element for raw commodities prices in U.S. dollars on the world markets. Reason: Such makes then cheaper to purchase in non-U.S. currency. Stay tuned!–Jim