Sep. 22 at 3:07 AM
$ARM Price action analysis: The stock jumped roughly 46 in a single session and closed at
$322.90. It surged about 55% above its 50-day moving average of
$261.05. The RSI hit 69.5, nearing overbought territory. Its gain far outpaced the Nasdaq’s +2.26% for the same period, marking a classic volume-fueled one-sided rally driven by thematic hype.
What moved the price: The catalyst was Meta’s launch of its Muse agent, plus reports that Meta will be the launch customer for Arm’s "AGI CPU". The market immediately priced in expectations of over
$2 billion in CPU orders for FY2027–28. This triggered the rally across the entire semiconductor chain, with Intel and AMD climbing alongside it.