SK Inc. up 6.6% in early trading; KOSPI buy sidecar triggered

The KOSPI rose 4.12% to 5,225.73 at 09:52 KST on Nov. 10 as Korean chip shares rallied following gains in U.S. semiconductor stocks. Shares of SK Inc. were up 6.58% at 477,500 won in Naver Pay Securities’ timestamped snapshot.

Among the chipmakers, SK hynix gained 6.60% to 1,211,000 won and Samsung Electronics rose 4.69% to 198,800 won. SK Square was up 5.40% at 761,000 won. All four stock quotes were recorded at 09:52 KST.

SK Inc. is SK Group’s holding company, according to its company overview. It is separately listed from memory-chip maker SK hynix and SK Square.

The KOSDAQ gained 2.67% to 656.02 in the same snapshot. All Nov. 10 prices in this story are intraday. The closing-data reference date is Nov. 9, when the KOSPI ended at 5,018.85, down 0.81%, and the KOSDAQ closed at 638.97, down 0.82%.

What triggered the sidecars

The Korea Exchange suspended the execution of program buy orders on the KOSPI market for five minutes from 09:06 KST. A KOSDAQ buy sidecar followed at 09:10 KST, as reported by Digital Times.

Under the KRX trading guide, a KOSPI buy sidecar is triggered when the relevant KOSPI 200 futures price rises at least 5% above its base price for one minute. On the KOSDAQ, the thresholds are a rise of at least 6% in KOSDAQ 150 futures and at least 3% in the KOSDAQ 150 cash index, sustained for one minute. The suspension applies to program buy orders, while other share trading continues.

Foreign buying earlier in the session

At 09:26 KST, foreign investors were net buyers on the KOSPI market, following seven consecutive sessions of net selling through Nov. 9, according to Yonhap. That earlier reading does not represent a closing total.

Upcoming releases

U.S. October consumer price data are scheduled for 22:30 KST on Nov. 10, according to the BLS calendar. CoreWeave’s third-quarter earnings conference call is scheduled for 07:00 KST on Nov. 11, according to the company’s announcement.