Key HighlightsMicron’s Q2 fiscal 2026 quarterly sales surged nearly 200% compared to the prior year, with records set in all divisionsAMD delivered $10.3 billion in Q4 2025 sales, marking a 34% jump year-over-year alongside a 57% non-GAAP gross marginTSMC forecasts approximately 30% revenue expansion in 2026 when measured in U.S. dollarsDespite strong AI exposure, these three companies maintain more modest price-to-earnings multiples than leading AI chipmakersTSMC anticipates its AI accelerator division will expand at a compound annual rate in the mid-40 percent range through 2029Three semiconductor powerhouses—Micron, AMD, and Taiwan Semiconductor Manufacturing—are riding the artificial intelligence wave with impressive momentum. Yet despite robust financial performance and accelerating growth trajectories, market analysts suggest these stocks may be undervalued relative to their sector peers.The ongoing buildout of AI infrastructure has created surging demand across the semiconductor supply chain, from specialized memory modules to cutting-edge processors and advanced fabrication services. While these companies occupy distinct positions within this ecosystem, they share a compelling characteristic: substantial revenue acceleration without the elevated valuation multiples commanded by other AI-focused names.Micron: Transforming from Commodity Memory to Critical AI ComponentMicron has undergone a remarkable repositioning in investor perception, evolving from a cyclical commodity producer into an essential AI infrastructure provider.Micron Technology, Inc., MUDuring the company’s fiscal second quarter of 2026, revenues expanded almost threefold versus the same period twelve months prior. The semiconductor manufacturer achieved unprecedented performance levels across its entire product portfolio, including DRAM, NAND flash, high-bandwidth memory, and all operating segments.Profitability metrics showed equally dramatic improvement. The company’s fiscal third-quarter outlook alone is projected to surpass total annual revenue figures from any fiscal year ending through 2024.Artificial intelligence servers demand massive quantities of specialized high-bandwidth memory, and Micron has positioned itself as a primary supplier for this critical component. Company leadership indicated that robust demand coupled with constrained supply conditions will likely persist well into 2027.The manufacturer is also negotiating extended, multi-year supply agreements with major customers, potentially transforming the business model toward greater predictability and reducing the historical boom-bust patterns that characterized the memory industry.Despite these fundamental improvements, Micron continues trading at a valuation discount compared to AI chip designers, even as memory has become indispensable to the AI computing architecture.AMD: Impressive Performance in Nvidia’s ShadowAMD announced record quarterly sales of $10.3 billion for Q4 2025, representing a 34% year-over-year increase. The company achieved a non-GAAP gross margin of 57%.Advanced Micro Devices, Inc., AMDChief Executive Lisa Su characterized 2025 as a transformational year and emphasized that the company began 2026 with substantial forward momentum. She highlighted the EPYC processor family and expanding data center AI operations as primary growth engines.AMD is constructing a comprehensive AI ecosystem that encompasses data center graphics processors, server central processing units, and strategic system-level collaborations.Market participants frequently position AMD as a direct competitor to Nvidia and sometimes dismiss it as the inferior alternative. However, AMD’s investment thesis doesn’t require outperforming Nvidia entirely. The company simply needs to capture increasing market share within a rapidly expanding addressable market while maintaining healthy profit margins.If AMD sustains its AI accelerator growth trajectory while preserving margin discipline, several analysts believe current valuations may prove significantly discounted when viewed retrospectively.TSMC: The Essential Manufacturing Infrastructure Powering AI InnovationTSMC produces the sophisticated semiconductor chips that power much of today’s AI economy. The foundry giant projects 2026 revenues will expand by nearly 30% when denominated in U.S. currency.Taiwan Semiconductor Manufacturing Company Limited, TSMAI accelerator production represented a high-teens percentage of total 2025 revenue. Management forecasts this segment will grow at a compound annual growth rate in the mid-40 percent range during the five-year period beginning in 2024.TSMC’s strategic position differs fundamentally from Micron or AMD. The company maintains diversification across products and customers rather than depending on any single offering or client relationship. As long as demand for leading-edge semiconductor manufacturing remains robust, TSMC occupies an irreplaceable position within the global supply chain.The manufacturer operates production facilities throughout Taiwan, Japan, and the United States, with additional American expansion projects currently in development.Final ThoughtsMicron, AMD, and TSMC have all delivered compelling financial results in their latest reporting periods. Each company maintains substantial exposure to AI hardware demand while demonstrating expanding revenues and improving profitability. The sustainability of these growth trends will largely depend on whether AI infrastructure investment maintains its current pace throughout the remainder of 2026 and beyond.The post Three AI Chip Stocks Trading Below Their Potential: Micron (MU), AMD, and TSMC (TSM) appeared first on Blockonomi.