The breathtaking rally in South Korean stocks hit a couple of key milestones overnight. The benchmark Kospi index at one point in the session was up 100% for 2026, rivaling the Nasdaq 100 Index’s 102% surge in 1999 – right before the bubble burst… Samsung (005930) was up 2.7% and SK Hynix (000660) soared 9.3% rallying to new record highs mainly on three things: 1) overnight backdrop of SOX +5.5% driven by MU +19% strength, 2) launch of leveraged ETF instruments including 14 products that track 2x the return, and 2 inverse products that track -2x the return of SEC(005930) and SK HYNIX(000660), and 3) reports of SEC’s union members voting in favor of a compensation deal and separately, that SK Hynix is making efforts to strengthen its long-term supply agreements via more favorable terms such as higher prepayment and ultra-long tenors of five years or more. Flow-wise, foreigners extended their net-selling streak in SK HYNIX to 14 consecutive days, selling -$156mn today, while they’ve also ended as marginal net sellers in SEC (-$54mn). Local …