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

South Korea’s KOSPI rose 4.53% from Monday’s shut to five,717.30 on Tuesday morning. The bounce made the Korea Exchange pause program shopping for for 5 minutes, its second brake in six days.

The first brake, on October 21, didn’t maintain. The KOSPI gave again that total rally inside two periods. For KOSPI holders, this rebound now rests on SK Hynix and Samsung Electronics, which report outcomes this week.

Memory Stocks Carried the Rally While Oil Gave a Small Push

The Korea Exchange imposed the curb, recognized as a buy-side sidecar, at 10:13 a.m., Yonhap reported. Investor sentiment improved after synthetic intelligence (AI) shares rebounded within the US in a single day.

Chip shares led the US session on Monday. The Philadelphia Semiconductor Index climbed 2.82%, whereas the Nasdaq Composite rose 0.82% to 26,169.38. The S&P 500 gained 0.70% to 7,676.77.

Brent crude additionally fell as Saudi, Pakistani, and Turkish officers held talks in Tehran. It traded at $114.64 a barrel early Tuesday, down 1.01% on the day. Even so, Brent stays 17.28% greater than a month in the past.

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Back in Seoul, Korea’s reminiscence giants led the transfer in Seoul. By 10:35 a.m., SK Hynix had climbed 7.14% to 1.366 million gained. Samsung added 4.93% to 223,500 gained.

Korea’s achieve outran Tuesday’s strikes elsewhere in Asia. Japan’s Nikkei 225 rose 1.96% to 63,407.69, and Taiwan’s TAIEX added 0.47% to 46,260.03.

The hole ran the opposite means on October 15, when the KOSPI sank 7.57% after hot US inflation data. The Nikkei and TAIEX fell 4.90% and three.41% that day. With a lot weight in two reminiscence makers, the KOSPI amplifies AI sentiment in each instructions.

Two Earnings Calls Stand Between This Rally and a Repeat

The rebound begins from a deep gap after weeks of chip-led selling. The KOSPI closed Monday practically 40% below its June peak. Foreign traders offered a web 695.5 billion gained that day.

Goldman Sachs cut its KOSPI target to 9,000 from 12,000 on Sunday. The financial institution says chip valuations suggest a 65% fall in 2027 sector earnings, an outlook it calls overly damaging.

SK Hynix studies third-quarter outcomes on October 28, and Samsung follows on October 29. Memory chipmakers make up about half of the index.

Retail traders stay uncovered to that final result. Their 2026 web purchases carry an estimated common entry close to 6,550, Global Markets Investor mentioned. Tuesday morning’s stage sits about 13% under that.

Firm steerage on 2027 reminiscence pricing would help Goldman’s case. Weak outlooks would maintain the 65% earnings-drop assumption priced in, and Tuesday’s features might then fade like the October 21 rally.

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