NEW YORK — The roller-coaster ride for AI stocks snapped back down on Tuesday and dragged Wall Street lower.

The S&P 500 fell 0.4 per cent even though the majority of stocks within the index rose. The drops for stocks in the artificial-intelligence industry dragged the Nasdaq composite down 1.2 per cent, while the Dow Jones Industrial Average dropped 130 points, or 0.2 per cent, from its record.

The weakness began in Asia, where Samsung Electronics tumbled 6.9 per cent in Seoul. The tech giant gave a preliminary look at its performance for the second quarter, and the numbers were strong. Samsung…