Stocks are drifting higher on Wall Street in light trading as U.S. markets reopen following the Christmas holiday.

Stock indexes drifted to a mixed finish on Wall Street as some heavyweight technology and communications sector stocks offset gains elsewhere in the market. The S&P 500 slipped less than

Shares are lower in Tokyo and Shanghai, two of only a handful of world markets open on Christmas day. Oil prices rose.

Big Tech stocks were among the biggest weights on the market. Semiconductor giant Nvidia, whose enormous valuation gives it an outsize influence on indexes, slipped 0.8%. Google parent Alphabet fell 0.