November 6, 2026
South Korea's Kospi sank hard as Micron's weakness spilled into the chip complex, wiping out roughly 500 billion dollars in market value.
What happened
The Kospi suffered a sharp selloff on what local traders called 'Black Friday.' Contagion from Micron's weakness tore through South Korea's semiconductor names. The rout signaled an unwind of concentrated AI trades in a market that serves as a pure proxy for the global chip cycle.
Why it matters
South Korean equities act as the world's semiconductor bellwether. When stress hits the Kospi, it transmits directly to global tech sentiment and broad risk appetite. The market is absorbing a forced rotation out of AI names while corporate borrowing stress builds, with high-yield bonds underperforming investment-grade by 0.4 percent and volatility spiking 18.2 percent over the past week.
The case against
The selloff may be a localized shakeout, not a fundamental breakdown. Through 2030, demand for frontier AI accelerators, high-bandwidth memory, and advanced packaging still runs well ahead of supply, and a single company's weakness does not erase that structural deficit.
What settles it
Whether the Kospi's memory chip names find a bid in the next two sessions or if the unwind cascades into broader Asian and US tech.