The U.S. dollar index, which is a basket of six major world currencies weighted against the greenback, has pushed to another 20-year high this week. Higher U.S. interest rates are making the U.S. currency more attractive for foreign investors. Also, the dollar remains a major safe-haven asset to hold during these times of keener geopolitical uncertainty. Trends in the currency markets tend to be stronger and longer-lasting than trends in other markets. There are no early technical clues that the USDX is close to a major market top.—Stay tuned. Jim Wyckoff