KOSPI Jumps 4.5% as Seoul Halts Program Buying Before SK Hynix Earnings

South Korea’s KOSPI rose 4.53% from Monday’s close to 5,717.30 on Tuesday morning. The jump made the Korea Exchange pause program buying for five minutes, its second brake in six days. The first brake, on October 21, did not hold. The KOSPI gave back that entire rally within two sessions. For KOSPI holders, this rebound now rests on SK Hynix and Samsung Electronics, which report results this week. Memory Stocks Carried the Rally While Oil Gave a Small Push The Korea Exchange imposed the curb, known as a buy-side sidecar, at 10:13 a.m., Yonhap reported. Investor sentiment improved after artificial intelligence (AI) stocks rebounded in the US overnight. Chip stocks led the US session on Monday. The Philadelphia Semiconductor Index climbed 2.82%, while the Nasdaq Composite rose 0.82% to 26,169.38.

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