KLA Corporation, onsemi, and Nova Shares Are Falling, What You Need To Know - Yahoo Finance

On June 23, 2026, global semiconductor markets experienced significant volatility following news that SK Hynix was slowing its high-bandwidth memory (HBM) expansion. This triggered widespread selling ... Read original →

SK Hynix’s shift from HBM to standard DRAM isn’t a retreat from AI—it’s a recalibration exposing structural imbalances in the AI hardware stack. Technically, slower HBM ramp delays bandwidth optimization for 3nm AI accelerators, dampening near-term utilization of ASML’s EUV tools and reducing visibility for KLA and Nova in advanced packaging inspection. Regulatory pressures and sustained U.S. export controls incentivize prioritizing high-margin, geopolitically safer DRAM over HBM. Samsung and Micron will likely follow suit, fragmenting HBM supply just as pricing stabilized. Over the next 12–24 months, the sector faces de-hype: genuine HBM demand remains confined to NVIDIA-tier clients, while peripheral equipment firms riding speculative momentum face valuation resets. Winners will be those with integrated DRAM-EUV capabilities and exposure to North American hyperscalers.