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.
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.
Korea’s KOSDAQ surged 6.97%, fast enough to trip a buy-side sidecar curb, as money rotated out of Samsung Electronics and SK Hynix into biotech, construction and battery names. The KOSPI added 0.65% to hold near 6,300.
DRAM spot prices historically turn one to two quarters before Samsung Electronics and SK Hynix earnings inflect — and those two stocks drive the KOSPI. Here is where to find the DXI index, DRAMeXchange spot quotes, and hyperscaler capex guidance, and how to read a cycle turn step by step.
The KOSPI surged 17.91% to 6,595.45 — its biggest one-day gain on record — as strong US tech earnings eased AI profitability fears and foreign investors piled back in after a brutal two-week selloff capped by back-to-back circuit breakers.
Korea’s KOSPI fell 5.98% and the KOSDAQ 6.12%, with market-wide circuit breakers halting both boards for a second straight day. SK hynix’s guidance letdown and forced selling from single-stock leveraged products drove the slide.
The KOSPI fell 10.84% to 6,023.66 and briefly broke below 6,000 as China semiconductor fears hammered Samsung Electronics and SK hynix. Both exchanges halted trading with sidecars and circuit breakers while foreign investors dumped roughly $3.4 billion of Korean stocks.
One company accounts for roughly a fifth of Korea’s benchmark index. Here is how KOSPI’s cap-weighted methodology turns Samsung Electronics and the memory-chip cycle into the index itself – and what that means for anyone tracking or buying Korean equities.
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.