[Analysis: Excessive Chip Stock Weight Pushes South Korean Stock Market into Danger Zone] BlockBeats reports that on June 30, the global artificial intelligence boom has driven the stock prices of Samsung Electronics and SK Hynix to record highs this year. However, this rally has also exposed the structural vulnerability of the South Korean stock market, which is unaccustomed to sharp fluctuations. The combined weight of SK Hynix and Samsung in South Korea's KOSPI index has now reached a record 60%, compared to about 40% two years ago. Last week, after a significant market decline, regulators intervened twice to suspend KOSPI trading in an effort to stabilize market confidence. Plans to introduce large-cap stock options, including SK Hynix, have been postponed. One concern is that retail investors are borrowing money to buy shares of Samsung and SK Hynix. This could expose retail investors to margin call risks, where brokers demand additional cash when stock prices fall below a certain level. The excessive market risk concentration in these two stocks could also prompt institutional investors to withdraw, further amplifying downward pressure on stock prices. Mathieu Racheter, head of equity research at Julius Baer, stated that the recent market movements serve as an important reminder of concentration risks. When investor positions become overcrowded, periods of high volatility should be expected.