This artificial intelligence (AI) pioneer was invited to join the storied S&P 500 Index after years of impressive growth.

U.S. stocks are drifting Thursday as the market’s big burst following Donald Trump’s election continues to cool. The S&P 500 was virtually unchanged in early trading and still near its all-time high set on Monday.

JPMorgan Chase fell 4.3%, a day after banks decisively led the market on expectations that a stronger economy and lighter regulation would mean fatter profits. It and Goldman Sachs were the biggest reasons for the Dow Jones Industrial Average's slight loss.