On Tuesday (May 19), the U.S. stock market Artificial Intelligence (AI) Winners Index fell by 0.51% to 375.45 points, although it briefly turned positive at 01:00 (GMT+8).

Fluence Energy constituent stock closed down 8.34%; Vertiv Holdings dropped 5.03%; nuclear stock Oklo fell 4.58%; CoreWeave declined 3.82%, ranking fourth in decline; Oracle dropped 2.76%; Coherent fell 2.54%, ranking tenth in decline; Google A closed down 2.34%. Lumentum, however, rose 0.58%, ranking ninth in performance; Micron Technology gained 2.52%; Arm Holdings increased 3.73%; SanDisk rose 3.77%; Marvell Technology climbed 4.35%; Astera Labs surged 13.40%.