July 30 : Qualcomm shares fell about 5 per cent in premarket trading on Thursday after the chipmaker's warning about higher memory costs and a steeper decline in Apple revenue raised concerns about near-term profit growth.A surge in AI infrastructure spending has tightened semiconductor supply chains, driving

AMD stock tumbled premarket amid broader AI memory trade anxiety. Here’s what’s driving the pullback, key technical levels, and what analysts expect for earnings.

"Cost went up, prices are going to go up," Qualcomm CEO Cristiano Amon said in an interview.

Shares of the company were down more than 4% in extended trading on Wednesday, while Apple shares were flat.