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Advanced Micro Devices's shares fell about 6% on Wednesday as analysts raised concerns that the chip designer's targets for an artificial intelligence (AI) ramp-up may be too ambitious.
The fall came amid a broader sell-off in the tech sector that saw megacap stocks fall 1.5% to 5% and the Philadelphia SE Semiconductor Index drop 3.5%. Wall Street fell on Wednesday after rating agency Fitch downgraded the U.S. government's credi...