Advanced Micro Devices shares gained as much as 5.8% on Wednesday, reaching their highest level since July 2024 and setting a new 52-week high. The stock had already been up roughly 3% in pre-market trading before extending the advance during the session. The move followed data from industry tracker Mercury Research showing AMD continued to claw back processor market share from rivals. Between the second quarters of 2024 and 2025, the company’s desktop CPU unit share increased by 9.2 percentage points, with additional gains recorded in the server segment. The figures reinforced investor confidence that the chipmaker’s new product line-up is translating into stronger sales.