KOSPI at 8,400: Samsung & SK Hynix Dominate Half the Market
KOSPI Shatters 8,400 as Samsung and SK Hynix Eclipse Half the Market: What the Leveraged ETF Frenzy Means for Global Investors KOSPI did something on May 27 that nobody had seen before. It blew past 8,400 intraday, peaking at 8,457 before settling around 8,229 — a 2.3% gain for the session. That makes it the first time in the index's 40-plus year history that it crossed the 8,400 threshold, barely one day after first cracking 8,000 on May 26. The speed is what gets me: two trading days, 400 points. Even the Korea Exchange had to trigger a "sidecar" curb — the circuit breaker that temporarily halts algorithmic trading — because the move was so sudden. When the machines need a timeout, you know something unusual is happening. But here's the thing that should make any foreign investor pause: according to Seoul Economic Daily , only 77 stocks rose against 826 that fell on the day KOSPI broke 8,400. The rally has exactly two engines — Samsung Electronics and SK H...