The AI Chip Test Gatekeepers — Every Accelerator Must Pass Through These Machines · The Memory Wall — HBM, DRAM, NAND & the AI Memory Cartel
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The "other half" of the test duopoly with Advantest. Magnum EPIC platform is the industry standard for several HBM and custom-ASIC test applications.
What they do
US-based ATE leader, also owns Universal Robots (the cobot business — see Robotics sector). Teradyne's Magnum EPIC platform is the industry standard for many HBM testing applications, and Teradyne has gained significant ground at hyperscaler custom-ASIC customers in 2025-26. Stock hit an all-time high of $344.92 in February 2026, up ~245% in 12 months.