The KOSPI reversed an early dip to close at 6,808.21 (+0.97%) as Samsung Electronics (+1.75%) and SK Hynix (+0.60%) advanced on cheaper oil and lower US yields. The KOSDAQ ended flat, with Nvidia earnings, a Bank of Korea rate decision, and Jackson Hole all looming this week.
The KOSPI plunged as much as 4.3% on overnight US chip weakness before Samsung Electronics and SK Hynix powered an afternoon reversal, closing up 0.68% at 6,742.74. Foreign investors sold heavily into the dip while retail bought. Nvidia’s earnings loom Wednesday.
Samsung Electronics’ record 110 trillion won shareholder-return plan fell short of market hopes, sending the stock down 8.7% and the KOSPI below 6,700. Rotation money lifted the KOSDAQ 1.4% as batteries and biotech rallied.
A 2x daily-reset product does not double your holding-period return: after a +10% then -10% two-day swing, the underlying is down 1% but the 2x product is down 4%. Here is the reset mechanism, the decay math on volatile Korean names like Samsung Electronics and SK Hynix, and the FSC/KRX rules that govern these products.
The KOSPI jumped 5.89% to 6,852.58 after SK Hynix unveiled a record 40 trillion won buyback-and-cancellation plan. Foreign investors bought 1.7 trillion won of Seoul shares while the won hit its strongest level against the dollar in about 11 months.
The KOSPI surged past 7,200 intraday on a semiconductor rally, then an afternoon wave of profit-taking erased the entire gain, closing down 1.55% at 6,869.83. Foreign investors kept buying while locals sold, and the collapse of the US-Iran ceasefire added a fresh layer of risk.
The KOSPI rose 2.42% to 6,977.94 — a fifth straight gain — after briefly crossing 7,000. Foreign investors bought roughly 1.45 trillion won of KOSPI shares, concentrated in Samsung Electronics and SK Hynix, while soft US inflation data supported risk appetite.
The KOSPI closed at 6,813.34, up 3.56% for a fourth straight gain, as an in-line US CPI print and shareholder-return hopes sent foreign investors piling into Samsung Electronics and SK Hynix. The catch: small caps fell and the won weakened.
The KOSPI closed at 6,345.53 (+0.73%) as Samsung Electronics jumped 4.13% and foreign buyers returned. A roughly 5% oil spike on Strait of Hormuz tensions pushed the won down to around 1,417 per dollar, while the KOSDAQ faded to a 0.39% gain amid heavy intraday foreign selling.
Korea’s customs service publishes preliminary export data on the 1st, 11th and 21st of every month — one of the earliest official readings on global chip demand. Here is what each release contains, why working-day-adjusted daily averages beat the headline YoY number, and how Samsung Electronics and SK hynix trade the print.