Micron Tumbles 13% As South Korean ETF Warning Fuels Chip Sell-Off - Yahoo! Finance Canada

Micron Technology's stock plummeted over 13% on June 23, 2026, amid a global chip sell-off fueled by a warning from South Korea’s Financial Supervisory Service about high-risk leveraged exchange-trade... Read original →

South Korea’s ETF warning reveals the fragility of a memory market inflated by speculative leverage, not fundamentals. Micron’s 260% YTD surge lacked backing from real AI server DRAM orders, leaving it exposed. Technically, HBM3E/HBM4 supply chains face disruption, with TSMC likely prioritizing Samsung and SK Hynix for CoWoS capacity—eroding Micron’s AI memory influence. Rising compliance costs will push firms toward long-term agreements with cloud hyperscalers, reducing reliance on volatile financial instruments. Samsung is poised to accelerate HBM yield ramps at its Xi’an and Taiwan, China fabs to capture NVIDIA’s GB200 demand. Over the next 18 months, the memory sector will shift from capital-driven speculation to a model anchored in customer lock-in and vertical integration, marginalizing players without deep tech or ecosystem ties.