The South Korean stock market is volatile and is often used as a benchmark for the trading of internet celebrity concept stocks.

The volatility of the South Korean benchmark stock index is unusually intense, with investors and analysts comparing the intraday large fluctuations in stocks to the previous hype of internet celebrity concept stocks. Although the Korea Composite Stock Price Index is supported by strong profits from top global chip companies, the comparison may seem somewhat exaggerated at first glance, but it is not without reason. Retail investors' trading enthusiasm continues to rise, with the benchmark stock index having a daily fluctuation of over 5% on 20 trading days this year, including a 10% plunge on Tuesday alone; while there were only 2 occurrences of such market conditions in the entire year of 2025. This scene reminds people of individual stocks such as Gamestop and Bed Bath & Beyond in 2021, when retail investors' speculative buying led to a frenzy in stock prices. Boosted by optimism in Micron Technology's performance, market sentiment has regained confidence in the artificial intelligence sector, leading the South Korean composite stock price index to its largest intraday gain of 6% on Thursday.