Goldman Sachs warns leveraged chip ETFs amplify South Korean market concentration and volatility

South Korea’s market rally is drawing fresh scrutiny as Goldman Sachs’ sales desk warns that leveraged exchange-traded funds tied to chipmakers could deepen concentration in the equity market and amplify volatility. The concern comes as Samsung Electronics and SK Hynix, the country’s dominant semiconductor firms, have come to represent more than half of the Kospi index, leaving the market heavily exposed to swings in a handful of stocks.