Recent sharp foreign selling has driven the KOSPI down nearly 32 percent from its June 2026 intraday peak of 9,385.59 to around 6,384 as of mid-October, creating the primary headwind behind the 71.5 percent market-implied probability that the index fails to reclaim an all-time high before end-2027. Heavy net outflows from semiconductor heavyweights Samsung Electronics and SK Hynix, despite record quarterly profits exceeding 100 trillion won, highlight decoupling from U.S., Japanese, and Taiwanese benchmarks that continue setting records. Elevated volatility, lower trading volumes, and sensitivity to global AI capital-expenditure trends and Bank of Korea policy further temper trader consensus. Key near-term catalysts include third-quarter export data, FOMC decisions, and any shifts in U.S.-China trade policy that could influence foreign inflows.