Kospi whipsaws again, sliding 6% as chip sell-off rattles market

South Korean stocks tumbled Friday, erasing the previous session's chip-fueled rally, as the Kospi slid nearly 6 percent and triggered another circuit breaker amid mounting concerns over extreme market volatility The benchmark Kospi fell 519.09 points, or 5.81 percent, to close at 8,411.21 after dropping as much as 8.19 percent during the session.

The tech-heavy Kosdaq lost 36.44 points, or 4.1 percent, to 851.37.

The sell-off triggered a sell-side sidecar at 11:12 a.m. after Kospi 200 futures f ...