South Korean and Japanese stocks opened higher on October 27. The KOSPI opened up 3.46% at 5,658.65, while the Nikkei 225 opened up 0.61% at 62,569.08.

According to Sina Finance, by publication time the KOSPI was up 4.02% and the Nikkei 225 had gained 2.13%. SK Hynix rose more than 7% and Samsung Electronics gained over 5%; in Japan, SoftBank Group advanced more than 5% and Kioxia rose over 2%.

In a report published on October 25, Nomura Securities said concerns about the outlook for artificial intelligence investment were an overreaction and that the memory-chip shortage would persist until 2028. The firm said memory-sector valuations had entered a severely undervalued range, maintained a positive view on the sector, and named Samsung Electronics and SK Hynix as stocks to watch.

Overnight in the United States, Anthropic’s IPO filing and Meta’s announced equity financing plan renewed investor confidence in the AI narrative. The Philadelphia Semiconductor Index gained 2.82%, while Tower Semiconductor rose 6.68%, Arm Holdings climbed 6.19%, Texas Instruments advanced 4.72%, and Intel gained 4.04%.