Market heavyweight Samsung Electronics Co Ltd was up 1.7 percent after touching a fresh record intraday high of 1.482 million won. Chipmakers were bullish as SK Hynix Inc rose 3.8 percent on forecasts of a return to operating profit in the fourth quarter.
Steelmakers rose for a third session after leading Thursday's stock gains on a positive demand outlook due to China's plans to fine-tune policies to ensure stable economic growth in 2013. But auto shares fell, continuing their trend of seesawing since late November's rapid gains on strong sales. Hyundai Motor Co fell 2 percent while affiliate Kia Motors Corp dropped 1.8 percent.
Hyundai Elevator Co Ltd and Hyundai Merchant Marine Co Ltd both rose more than 11 percent, as investors bet the controlling shareholders of both companies could buy up more shares to cement management control after Hyundai Elevator's second-largest shareholder filed a suit against Hyundai Elevator last month. Advancing shares outnumbered decliners 453 to 289 near midsession. The KOSPI 200 benchmark of core stocks was up 0.5 percent, while the junior KOSDAQ rose 1 percent higher.