The U.S. dollar index is a basket of six major world currencies stacked up against the U.S. dollar. See on the daily bar chart that the USDX last week hit a two-year high amid a solid price uptrend. The greenback bulls are in solid technical control and there are no early technical clues the dollar index is about to top out. Thus, the path of least resistance heading into the new year is sideways to higher. Stay tuned!