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.

Data going back to 1950 show that the first five trading days of the year on the S&P 500 can sometimes be indicative of the index's performance for the full year, according to Dow Jones Market Data. As of Tuesday morning,

U.S. equity futures edged higher in early Tuesday trading, while Treasury yields steadied and the dollar slipped, as investors looked to the first of a series of job market data releases that could test the market's early January rally.

Rising technology stocks on Monday helped U.S. indexes recover some more of their holiday-season slide that bridged the new year. The S&P 500 added 0.6% for a second straight gain following five straight losses,

Stocks are running in premarket trading on Monday. Here's a look at major indexes as of 8:50 a.m. ET: Nasdaq Futures: Up 205.25 (+.95%) S&P 500 Futures: Up 45.25 (+.76%) Dow Jones Futures: Up 184 (+.43%) The big story in premarket trading is that NVIDIA (Nasdaq: NVDA) and chip stocks are up big.