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South Korea's KOSPI Is Trading Like a Meme Stock, and the S&P 500 or Nasdaq Composite May Be Next

Summary by The Motley Fool
Key PointsSouth Korea's KOSPI Composite Index has gained or lost between 2% and 10% in 25 of the last 37 trading sessions. The KOSPI's outsize volatility is being driven by never-before-seen concentration and retail investors' use of leveraged exchange-traded funds (ETFs).The S&P 500, Nasdaq Composite, and Nasdaq-100 share these same risk factors, with an added twist. 10 stocks we like better than NASDAQ Composite Index › For much of the last fo…

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According to ChainCatcher, the South Korean trading platform KRX suspended algorithmic trading for approximately 5 minutes due to fluctuations in the KOSPI index triggering its sidecar mechanism. The sidecar mechanism is primarily used to handle sharp, short-term volatility, restricting only algorithmic trading while manual trading continues as normal. Unlike circuit breakers, the sidecar mechanism does not halt the entire market; it is more oft…

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The Motley Fool broke the news in Alexandria, United States on Sunday, July 26, 2026.
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