Nvidia (NVDA) just became the first company in history to hit a $5.5 trillion market cap. Its CEO is flying to Beijing with President Trump. And on the same day all of that was happening, Bank of America's top semiconductor analyst just changed a number that puts 45% upside on the table.

Bank of America raised its price objective on Arm Holdings after the chip-design company posted a stronger March quarter, but the firm stopped short of turning more bullish on the stock as investors continue to price in a larger artificial-intelligence opportunity.