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.

Shares of NVIDIA Corp. NVDA slid 6.22% to $140.14 Tuesday, on what proved to be an all-around rough trading session for the stock market, with the S&P 500 Index SPX falling 1.11% to 5,909.03 and Dow Jones Industrial Average DJIA falling 0.