Strong semiconductor exports, fueled by global AI demand, represent the dominant driver of market-implied odds for South Korea’s Q3 2026 YoY GDP growth, with September shipments hitting a record $120.9 billion and chips exceeding $60 billion. Recent institutional upgrades, including the IMF’s October 13 revision of full-year 2026 growth to 3.3% from 2.6%, reflect this momentum outweighing Middle East conflict-related energy price pressures. The closely matched 34.5% and 33.0% probabilities on the 2.5–2.9% and 3.0–3.4% brackets underscore uncertainty around the precise quarterly print, as export gains have not fully translated into broad domestic consumption or investment spillovers. Key swing factors include potential AI spending moderation and the upcoming official Q3 release, which will resolve the market amid elevated current-account surpluses and benchmark comparisons to prior export-led expansions.