Stock index futures reversed course and turned red on Wednesday, a day after Wall Street witnessed a sell-off on revised rate cut bets. S&P 500 futures (SPX) -0.3%, Nasdaq 100 futures (US100:IND) -0.3% and Dow futures (INDU) -0.

The buck's latest surge comes as rising Treasury yields attract funds, and so-called 'U.S. exceptionalism' - a strong economy containing many of the world's biggest and most successful companies - encourages global investors to buy American assets.

Good news on the U.S. economy is back to being bad for Wall Street, and the stock market slumped Tuesday following better-than-expected reports on the job market and business activity. The S&P 500 fell 1.

Good news on the U.S. economy is back to being bad for Wall Street. The S&P 500 swung to a loss of 1.4% after a pair of reports on the