On Monday (May 18), the US stock market Artificial Intelligence (AI) Winners Index fell by 3.21% to 377.39 points.

The constituent stock Nebius Group closed down 9.13%. MOD, produced by Modine Manufacturing, dropped 8.90%, and Lumentum had the third largest decline with a fall of 8.83%. Corning Incorporated and Micron Technology were also among the top ten decliners. Of the seven constituent stocks that closed higher, Google A and Amazon had the smallest gains, Microsoft rose by 0.38%, Palantir was up 0.86%, and Arm Holdings increased by 2.85%.