KOSPI Surges Toward 7,000, Nikkei Tops 66,000 as SK Hynix, Kioxia and SoftBank Soar Over 5%

TradingKey - Japanese and South Korean stock markets opened higher and rallied, with the KOSPI surging 3.5% at the open, the Nikkei 225 topping 66,000 points, and chip stocks such as Samsung, SK Hynix, and Kioxia surging collectively.

In Asian trading on September 7, stock markets in both Japan and South Korea saw a strong morning rebound, opening higher and trending upward. Among them, South Korea's KOSPI Index surged 3.5% at the open, approaching the 7,000 mark to trade at 6,921.17 points. Core tech chip stocks also opened higher and moved upward, with Samsung Electronics rising 4.11% to 266,000 KRW, and SK Hynix advancing 5.46% to 1,737,000 KRW.

KOSPI Index chart, source: TradingView

The Nikkei 225 Index rose 2.07%, climbing above 66,000 to trade at 66,366.55 points. Both major heavyweight stocks advanced, with SoftBank surging 6.82% to approach the 6,000 mark at 5,971 JPY, and Kioxia jumping 7.93% to 58,780 JPY.

On September 4 (last Friday), stronger-than-expected nonfarm payrolls triggered a collective decline across the three major U.S. stock indices, but the Philadelphia Semiconductor Index surged over 3%. U.S. tech stocks and AI chip leaders such as Nvidia (NVDA), Marvell (MRVL), and AMD (AMD) rose sharply, injecting strong capital confidence into Japanese and South Korean markets, which are highly reliant on electronics and semiconductor supply chains.