Most of America's large technology stock fell before it fell

ON 28 JULY, THE U.S. STOCK OF A.I. CHIPS FELL COLLECTIVELY, INCLUDING A 4 PER CENT DROP BY THE LEEDYS SEMICONDUCTOR, INTEL, AND THE UNITED STATES SUPER-MICRO CORPORATION (AMD), AND A 2 PER CENT DROP BY THE BUILD-UP OF POWER, HIGH-TECH, NSHIPUR AND BOTOON。