The KOSPI was rising in early trade on Feb. 10, supported by a positive lead from U.S. technology shares, hovering in the 5,320 range.

As of 9:30 a.m., the KOSPI was up 27.65 points, or 0.52 percent, at 5,325.69 from the previous close.

The index opened up 52.17 points, or 0.98 percent, at 5,350.21. It climbed as high as 5,363.62 before trimming gains.

After surging 4 percent a day earlier, the KOSPI was extending gains while paring its advance.

Foreign investors and institutions were net buyers of 260 billion won and 6 billion won, respectively. Individuals were net sellers of 273.8 billion won.

Samsung Electronics and SK Hynix, which jumped about 5 percent a day earlier, were rising again and adding upward pressure on the index.

Samsung Electronics, up 0.42 percent, was trading in the 167,000 won range. SK Hynix was up 1.13 percent, after news reported a day earlier that SK Group Chairman Chey Tae-won (최태원) and Nvidia CEO Jensen Huang (젠슨 황) had a "chicken meeting" in the United States earlier this month.

Hyundai Motor was up 4.29 percent on expectations after a training video of humanoid robot "Atlas" was released. Kia was also higher, up 1.69 percent.

Samsung Biologics, up 0.53 percent, and KB Financial Group, up 2.25 percent, were also rising.

LG Energy Solution was down 0.76 percent, Hanwha Aerospace fell 1.17 percent, Doosan Enerbility slid 1.05 percent, HD Hyundai Heavy Industries lost 0.37 percent and Samsung C&T dropped 0.64 percent.

The Kosdaq was down 2.01 points, or 0.18 percent, at 1,125.54.

It opened up 4.69 points, or 0.42 percent, at 1,132.24 and rose as high as 1,141.67 before turning lower in intraday trade.