Arm shares jump 25% as post-earnings rally extends to second week

Arm shares rose more than 24% on Monday, extending last week's rally as investors continue to applaud the chipmaker's better-than-expected third-quarter earnings and its position in the artificial intelligence boom.Arm is now up over 90% since it reported quarterly financials on Feb. 8, though without any clear catalyst for Monday's move. The stock is up 142% since Arm's initial public offering in September and is now worth about $148 billion.Last week, Arm said it could charge twice as much for its latest ...