South Korea Daily Briefing

Korean media's '블루 쓰나미 (Blue Tsunami)' framing — the Democratic US midterm sweep — was validated in market action: KOSPI opened -8%+ and fell below 5,000 before the circuit breaker halted trading 3 minutes in. The parallel to Black Monday 1987 and Korea's 2020 COVID circuit breaker is the reference point. At the core: foreign investors are repricing Korea's entire semiconductor supply chain, not just individual companies, based on a single policy risk in Washington.

Korean memory firms Samsung and SK Hynix had publicly stated their HBM memory is sold out for 1-3 years — but Donga Ilbo reported the market is now pricing Democrat data centre regulation delays into the 3-5 year capex authorization cycle. If Democratic-led regulators delay data centre permitting by 18-24 months, Samsung and SK Hynix's next-generation fab expansion timeline compresses with it. This is the 'second derivative' risk — not existing orders, but the pipeline that justifies ₩300 trillion+ in future capex.

South Korea's FSC, FSS, BoK, and Ministry of Finance held an emergency joint meeting on Friday, announcing temporary relaxation of 신용융자 (credit margin) maintenance ratios effective November 9. This prevents forced liquidation of leveraged retail positions — a key systemic risk in Korea's retail-heavy market where individual investors hold >60% of KOSPI float. The government called the market's reaction 'excessive' vs fundamentals, drawing a distinction between short-term sentiment and Korea's actual semiconductor order book.