According to Goldman Sachs, today July 14, the KOSPI's sharp decline was amplified by mechanical selling from forced deleveraging of single-stock leverage ETFs. The investment bank noted that 2x leverage ETFs tracking semiconductor stocks like Samsung Electronics and SK Hynix fell over 30% in a single day, forcing asset managers to sell underlying holdings to maintain target leverage ratios, creating a vicious cycle of selling pressure.
Domestic institutions net sold $1.5 billion and foreign investors net sold $1.13 billion on the exchange today, with Goldman Sachs estimating 62% of domestic institutional selling came from ETF liquidation. The bank identified 6,800 as the key technical support level; if breached, the next support stands at 6,500, followed by 6,100–6,000.