Korea’s KOSPI jumped 3.56% to 6,747.95 as Samsung Electronics surged 6.15% and chip stocks led a rebound, tripping the year’s 19th buy-side sidecar. Foreign and institutional buying drove the bounce after a brutal three-week slide.
Korea’s KOSPI fell 4.46% to 6,516.27 and the KOSDAQ lost 5.33% as semiconductor demand worries and US-Iran tensions triggered sell-side sidecars on both exchanges. Institutions led the selling while individuals and foreign investors bought the dip.
Korea’s KOSPI jumped 7.01% to 7,284.41 after a softer US CPI print eased Fed tightening fears, tripping buy sidecars on both exchanges. Foreign investors bought roughly $1.6 billion of KOSPI shares, but the index remains about 14% below its June 30 level.
Korea slows a crashing market in three layers: sidecars pause program trading at a 5% futures move, circuit breakers halt everything at index drops of 8%, 15%, and 20%, and volatility interruptions cool single stocks. Here is how each trigger works, in what order they fire, and how to read the flow data around a halt.
The KOSPI rose 2.52% and the KOSDAQ jumped 5.47% as a US chip rally and seven-times-oversubscribed demand for SK hynix’s Nasdaq ADR listing fired up sentiment, triggering buy-side sidecars. Institutions bought the dip while retail and foreign investors sold.