Micron rises 13% as strong forecast impresses AI-hungry investors

The forecast drove up shares of other chip firms earlier in the day, but they pared gains after a media report said the U.S. Department of Justice was probing server maker Super Micro Computer. Super Micro, a big customer of chipmakers, resells and employs their products in its servers. Shares of Nvidia, Intel and Broadcom gave up earlier gains of more than 2% to trade only slightly higher.