All traders should now be watching the U.S. Dollar Index very closely. This morning, as soon as the U.S. Dollar Index futures (DX U1) caught a bid and started to trade higher the major stock indexes began to sell off. Right now, the markets are trading inverse to the U.S. Dollar Index, especially after the opening bell rings at the New York Stock Exchange. Traders should remember that this is also Wednesday before options expiration which is generally very volatile and turbulent. Traders should expect the unexpected in the major stock indexes and in the U.S. Dollar Index.