Kospi falls 2.5 percent as Korean chipmakers lead Asia lower

South Korea's Kospi fell 2.5 percent in Tuesday trade, with SK Hynix down 3.5 percent and Samsung Electronics down 1.8 percent, as renewed concern over the financing and profitability of the AI buildout weighed on Asian technology shares, Investing.com reported.

Why it matters: Seoul is again the region's pressure point for the chip selloff, with Korean memory names falling even after United States chip stocks rebounded on Monday, ahead of a week of large technology earnings.

Data as of Investing.com report by Roushni Nair, published October 19, 2026 at 11:39 PM ET, read in full, reporting Tuesday, October 20 trade in Asia. Single source, hence grade C. Developing item.

Asian stocks fell on Tuesday, with South Korea leading the losses: the Kospi dropped 2.5 percent, SK Hynix lost 3.5 percent and Samsung Electronics fell 1.8 percent, while the MSCI Asia Pacific index declined 0.8 percent, Hong Kong’s Hang Seng fell 1 percent and Japan’s Nikkei 225 fell 0.5 percent. Investing.com attributed the move to renewed concern over the financing and profitability of the AI boom ahead of this week’s technology earnings, and said sentiment in Seoul was also hit by AI data centre company Elice Group, which opened 16 percent below its IPO price on debut and fell as much as 33 percent. The Korean falls came even though the Philadelphia Semiconductor Index rose 1.6 percent in the United States on Monday, ending an eight session losing streak.

Kospi falls 2.5 percent as Korean chipmakers lead Asia lower

Sources