Arm Ends Second Day of Trading Lower After Strong Debut

  • Stock gets its first hold, analyst says valuation ‘looks full’
  • Arm’s IPO expected to set tone for Instacart, other debuts

The Arm IPO at the Nasdaq MarketSite in New York, on Sept. 14.

Photographer: Michael Nagle/Bloomberg
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Arm Holdings Plc’s second day of trading proved to be a volatile one.

The chip designer’s shares jumped 8.5% at the open on Friday, then swung between gains and losses before ending the day at their session low, down 4.5%. The move followed the stock’s buoyant market debut, where it notched a 25%Bloomberg Terminal rally after raising $4.87 billion.