Post by Augustine Chiagozie (@pabloexchange)

📉 How leverage turned South Korea's AI boom into a market crash

South Korea went from the world's best-performing stock market to a 30% correction in less than a month. Nearly $1.3 trillion in market value disappeared after years of gains driven by just Samsung Electronics and SK Hynix, which together accounted for more than 50% of the KOSPI.

The AI story itself didn't break. Both companies remain global leaders in AI memory chips, and demand for HBM continues to grow. The problem was market structure. Retail investors piled into leveraged single-stock ETFs, owned around 92% of these products, and borrowed nearly ₩60 trillion to amplify their bets.
⠀
When global semiconductor sentiment weakened, leverage turned a normal correction into a cascade of forced selling. More than 1.2 million investors reportedly faced margin calls, while foreign investors had already pulled almost $110 billion from Korean equities. Rising inflation and a surprise interest rate hike added further pressure.
⠀
The lesson goes beyond South Korea. Strong fundamentals can drive a rally, but when too much leverage and too many investors crowd into the same trade, market structure often matters more than the underlying business.

0 likes · 0 comments · 0 shares