Ask what Korea is talking about.

Korean stocks opened lower Friday, tracking Wall Street losses as renewed concerns over the sustainability of the AI boom weighed on sentiment, Yonhap reports. The KOSPI tumbled more than 4% in morning trade, prompting a halt in program selling, according to KBS World. This follows a week of AI-driven volatility: on Oct. 22, Seoul stocks slid over 3% on profit-taking amid persistent AI woes, and on Oct. 26, the KOSPI fell 1.46% to close at 5,469.47, KBS World reports. Goldman Sachs cut its 12-month KOSPI target by 25% to 9,000, citing concerns over AI infrastructure returns, Business Korea reports. Korean investors are reacting to the same AI profitability worries that hit US markets, with chip shares leading the sell-off.