Arm Holdings Stock Surges 13% After Mizuho Price Target Boost

Arm Holdings (ARM) shares jumped 13% on Wednesday, reaching an intraday high of $345.60, after Mizuho Securities raised its price target to $360 from $290. The new target implies a 19% upside from Tuesday's close of $302.71 and would mark a record high if achieved.

The investment firm maintained its Outperform rating, citing robust DRAM demand through 2027 and expansion in the high-bandwidth memory market as key catalysts. Arm's semiconductor business stands to benefit from these sector tailwinds, compounded by growing investor enthusiasm around agentic AI applications.

With gross margins holding at 94.08%, the company's market capitalization now approaches $322 billion. The stock has gained over 210% since January 2026, reflecting heightened optimism about Arm's positioning in memory and AI-related chip architectures.