These 5 AI Stocks Have Returned 300%-Plus Over the Past 3 Years -- and 1 Still Looks Dirt Cheap

Five semiconductor companies have delivered 300%+ returns over three years by capitalizing on AI data center infrastructure spending. Nvidia leads with 86% market share in AI chips, while Micron stands out with a 1,300% gain and a relatively cheap valuation despite concerns about memory demand sustainability. TSMC, Broadcom, and AMD also benefit from strong AI-driven demand, though investors worry about whether heavy capex spending will deliver adequate returns.