Shares of South Korean memory chip giant SK Hynix experienced a historic decline. During trading on July 13, the stock plunged 15.4%, marking the strongest one-day crash in the company's history. This shock immediately rippled across the country's entire stock market, triggering a massive sell-off.
The drop was the culmination of a prolonged downward trend. By this point, SK Hynix shares had already lost a significant portion of the value accumulated during a historic rally fueled by the artificial intelligence boom. The company's market capitalization, often referred to as "Korea's Nvidia" in the industry, shrank from approximately $1.25 trillion at its peak in June to around $1.05 trillion. Thus, from the June record, the stock lost 38%, and nearly $200 billion in market value evaporated.
In July alone, shares fell by 30%. At this pace, the current month risks becoming SK Hynix's worst since October 2008. Investors began to lock in profits and reassess expectations for the memory chip market's growth, which had previously been heated by AI hype.
Collapse of the Entire Korean Market
SK Hynix's decline dragged down the entire Korean market. On July 13, a circuit breaker was triggered during trading of the South Korean KOSPI index. The mechanism temporarily halted trading to curb panic selling. Ultimately, the index fell by 8.95% to 6,806.93 points.
SK Hynix itself dropped 15.37% that day to 1.845 million won per share. This is approximately 38% below the intraday record set on June 25. The significance of this episode lies in the fact that a single company effectively determined the entire market's dynamics. Given SK Hynix's enormous weight in the index, its crash became a key factor in the KOSPI's record decline.
Analytical commentary from Cryptalist: This case is a classic example of risk concentration in markets dominated by individual blue chips. The bubble in the semiconductor sector, inflated by the AI theme, is beginning to deflate. Investors should reconsider their portfolios: volatility in this segment will only increase, and the correction could drag on for months.