Korean Stocks Tumble 10% as Extreme Volatility Rattles Investors What started as a routine risk-off session quickly spiraled into a market rout. The Kospi plunged 10%, with SK Hynix and Samsung sliding more than 12%, triggering a 20-minute trading halt. Foreign investors dumped over $2.5 billion in shares as forced liquidations, margin calls, and leveraged ETF selling accelerated the decline. Source: Bloomberg(Frank Chaparro)