Hardware Crash: SK Hynix and Samsung Stocks Plummet Amid Fears of AI Infrastructure Overheating

The capital expenditure bubble has begun to burst on Asian and European exchanges. On August 19, 2026, the technology sector came under a massive blow: the Korean Kospi index collapsed by 5.8%. Key AI hardware suppliers dragged the market down—Samsung Electronics shares lost 7.8%, and the stock of the largest HBM memory manufacturer, SK Hynix, plummeted by 9.8%.

This crash marks a harsh revision of Wall Street multipliers. Investors have realized a mathematical abyss: the astronomical CAPEX for building gigawatt data centers is growing exponentially faster than the real return on investment (ROI) from software AI products. Hyperscalers continue to burn free cash, but the B2B market is not ready to pay comparable amounts for subscriptions. The sell-off of the "bricks" of the AI revolution proves that the phase of blind investment in infrastructure is over. The market demands to see net profit; otherwise, hardware vendors face a prolonged financial winter.

Source: BNN Bloomberg