Record‑Breaking KOSPI Close Surpasses 4,500 Seoul’s benchmark KOSPI finished at 4,525.48, up 67.96 points (1.52%) and crossing the 4,500 threshold for the first time, extending the momentum from the prior session that had already breached 4,400 [1][2].

Tech, Brokerage, and Shipbuilding Stocks Lead Rally Gains centered on semiconductors, brokerages and shipbuilders, with Samsung Electronics up 0.58%, SK Hynix jumping 4.31%, Hyundai Heavy Industries climbing 7.21% and Korea Aerospace Industries surging 9.41%, underscoring large‑cap tech’s pivotal role [1][2].

Retail Investors Power Late‑Day Buying Amid Institutional Outflows Domestic individuals bought a net 597.55 billion won, offsetting foreign net selling of 618.83 billion won and institutional net selling of 68.93 billion won; trading volume hit 492.84 million shares worth 25.27 trillion won, though decliners (482) outnumbered advancers (394) [1][2].

Currency Weakening and Mixed Bond Yield Moves Accompany Surge The won slipped to 1,445.50 per U.S. dollar, down 1.7 won, while the three‑year Treasury yield rose 1.5 bps to 2.948% and the five‑year yield fell 0.5 bps to 3.244%; foreign investors turned net sellers after a two‑session buying spree [1][2].