NEW YORK — The roller-coaster ride for AI stocks is snapping lower again Tuesday and weighing on Wall Street.

The S&P 500 fell 0.7% even though the majority of stocks within the index rose. The drops for stocks in the artificial-intelligence industry dragged the Nasdaq down 1.5%, as of 11:20 a.m. Eastern time, while the Dow Jones Industrial Average was down 206 points, or 0.4%.

The weakness began in Asia, where Samsung Electronics tumbled 6.9% in Seoul. The tech giant gave a preliminary look at its performance for the second quarter, and the numbers were strong. Samsung Electronics said it expects to say its operating profit surged roughly 1,800% from a year earlier.

Analysts called the numbers surprisingly good, but they still weren’t…