KOSPI slips 0.8% as intraday gains fade; won firms to 1,347.1

The KOSPI fell 0.81% to 5,018.85 on Monday, Nov. 9, erasing an intraday gain of as much as 2.24% from Friday’s close. The KOSDAQ fell 0.82% to close at 638.97.

At the 15:30 KST daytime close, the won stood at 1,347.1 per dollar, strengthening by 9.5 won from Friday’s daytime close.

Chipmakers Samsung Electronics and SK hynix finished higher. Among other large stocks, LG Energy Solution fell 5.78% to 318,000 won, while Samsung Biologics lost 0.40% to 1,510,000 won.

A 182-point intraday range

The benchmark opened at 5,034.20, down 0.50% from Friday’s close, and reached a session low of 4,990.66, a decline of 1.36%. It then climbed to 5,172.94, up 2.24% from Friday’s close, before falling again in the afternoon.

Its high-to-low range was 182.28 points. The index ended 40.84 points below Friday’s close of 5,059.69.

The Korea Economic Daily linked market weakness to concern about tighter U.S. regulation of AI data-centre construction.

Foreign investors sell; institutions buy

Foreign investors sold a net 689.5 billion won ($512 million) of KOSPI shares, while institutions bought a net 717.2 billion won ($532 million), according to provisional figures displayed by Naver Pay Securities after the close.

On the KOSDAQ, foreign investors sold a net 74.8 billion won ($56 million), while institutions bought a net 107.5 billion won ($80 million). These market-wide totals do not identify which stocks each investor group traded. The provisional figures may be revised.

Dollar equivalents are calculated at 1,347.1 won per dollar, the Nov. 9, 15:30 KST daytime close.

Currency research and the next data release

In its Nov. 6 outlook for 2027, Shinhan Securities argued that AI supply-chain trade settlements and equity flows matter more for exchange rates than interest-rate differentials during technological shifts. Its analysts forecast won strength in the first half of 2027, followed by weakness in the second half.

The U.S. Bureau of Labor Statistics is scheduled to release October consumer price index data at 22:30 KST on Nov. 10, according to its official release calendar.