SK海力士年内狂飙240%，韩国交易所罕见警示风险

Core Viewpoint - The South Korean Exchange issued a "cautionary investment alert" for SK Hynix due to its stock price surge, indicating potential overheating in the stock [3][10]. Group 1: Stock Performance - SK Hynix's stock price has surged nearly 240% this year, significantly outperforming the KOSPI index by more than three times [3][6]. - Following the cautionary alert, SK Hynix's stock dropped 5.4% on Tuesday, marking its largest decline in three weeks [1][3]. Group 2: Exchange's Cautionary Measures - The issuance of a cautionary alert by the South Korean Exchange is rare and triggered by sudden or unexplained large fluctuations in stock price or trading volume [1][8]. - The alert serves as a warning for investors to exercise caution but does not immediately halt trading [10]. - If a stock meets certain criteria during the cautionary alert period, such as a 100% increase over three trading days, further warnings or trading restrictions may be implemented [9].