Stock indexes drifted to a mixed finish on Wall Street Thursday, as some heavyweight technology and communications sector stocks offset gains elsewhere in the market. The S&P 500 fell less than 0.1% after spending the day wavering between small gains and losses.

Stock indexes drifted to a mixed finish on Wall Street as some heavyweight technology and communications sector stocks offset gains elsewhere in the market.

Wall Street's main indexes closed largely unchanged on Thursday, amid light trading the day after the Christmas break, as rising U.S. Treasury yields weighed on some of the dominant technology megacaps.