The S&P 500 and the Nasdaq closed lower on Tuesday while the Dow edged up to its third record close in a row, as investors digested disappointing retail sales figures and waited for a key labor market report. The S&P 500 communication services sector was the market's weakest sector, weighed down by Alphabet shares, which fell 1.8% after Google's parent said it sold bonds worth $20 billion.The announcement played in to investor worries about the amount of money technology companies say they must spend to support the artificial-intelligence boom, with Amazon, Alphabet, Meta and Microsoft collectively set to spend hundreds of billions in 2026 as they race for AI dominance. Meanwhile, U.S. retail sales unexpectedly stalled in December as households scaled back spending o