Arm Holdings (NASDAQ: ARM) stock slid nearly 5% premarket on Thursday after an investment firm downgrade raised near-term valuation concerns, despite massive backend semiconductor manufacturing spend.

Chip stocks sold off on Monday despite an upbeat report from Taiwan Semiconductor Manufacturing. Arm and other stocks broke support.

ARM drops 7% ahead of July 29 earnings. With a 380x P/E ratio, can growth justify the premium valuation? Read our analysis.

ARM stock falls over 6% after HSBC downgrade flags valuation risks, despite KeyBanc raising its price target to $430. Get details.

Arm Holdings (NASDAQ: ARM) stock slid nearly 5% premarket on Thursday after an investment firm downgrade raised near-term valuation concerns, despite massive backend semiconductor…