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.

Nvidia traded slightly higher after Jensen Huang's CES keynote. Traders are eyeing key economic data later in the week.

U.S. stock indexes are rising Monday to recover more of the holiday-season slide that bridged the new year. The S&P 500 was 1% higher in afternoon trading and on track for a second straight jump following five straight losses,