KOSPI plunges below 6,000 as SK Hynix misses forecasts

South Korea's benchmark KOSPI index plummeted below the 6,000-point mark on July 29, defying expectations even as semiconductor giant SK Hynix announced record-breaking second-quarter earnings. The market's sharp reversal highlighted investor concerns despite the company's impressive financial performance.

The KOSPI opened higher, trading above 6,089 points, but quickly reversed course. By late morning, it had fallen dramatically, trading at 5,727.99 points and triggering a sell-side circuit breaker. The decline erased earlier gains, demonstrating a broad market sell-off.

SK Hynix reported an operating profit of 60.5 trillion won for the second quarter, a staggering 557.2% increase year-on-year. However, this figure fell short of the average analyst forecast of 63.15 trillion won. The company's subsequent investor relations briefing offered no significant positive news, further dampening market sentiment and leading to a sharp drop in its own stock price, which fell over 6% and dragged down the broader index.

Samsung Electronics, another major player, initially saw significant gains of up to 5% but eventually turned negative. The broader market sentiment was clearly negative, with the KOSDAQ index also reversing its opening gains and falling 4.55% to 673.72 by the same time.

The market's reaction suggests that even record earnings may not be enough to satisfy investors when they miss market expectations, especially in a volatile economic climate. The steep decline underscores the sensitivity of the South Korean stock market to global economic trends and specific corporate performance metrics.