GoKawiilCANADA - 2025/08/07: In this photo illustration, the SoftBank Group (Soft Bank) logo is seen displayed on a smartphone screen. (Photo Illustration by Thomas Fuller/SOPA Images/LightRocket via Getty Images)
Japanese markets reopened after an extended holiday and investors rushed to catch up with a global artificial intelligence-fueled rally, sending Japanese tech names higher.
Shares in Japanese tech-focused investment giant SoftBank Group soared 18.44% to record its best day since 2020, amid a broader tech-fueled rally that saw Japan's Nikkei 225 surge to record highs.
Shares of SoftBank since the start of the year
The rally came after Wall Street's tech-heavy Nasdaq Composite hit another record overnight, with U.S. artificial intelligence-linked stocks surging. Chipmaker Advanced Micro Devices Inc. rose 18.6%, Arm Holdings advanced 13% and server maker Super Micro Computer Inc. soared 24.5%.
"Japan was shut for the back end of Golden Week while global risk assets ripped, so today's move is the Nikkei pricing in three sessions in one," said Global X ETFs' investment strategist Billy Leung.
"SPX hit a fresh record and Nasdaq made another all-time high while Tokyo was closed, led by semis and AI names," Leung said, adding that Advantest and Tokyo Electron are "the most liquid Japanese expressions of that AI semi trade."
He added that easing geopolitical concerns also helped sentiment, with oil prices falling on signs of de-escalation between the U.S. and Iran.
SoftBank's gains were amplified by its close ties to Arm and artificial intelligence firm OpenAI. "SoftBank is effectively the listed proxy for OpenAI and Arm," Leung said.
The move also reflected growing investor optimism around data center infrastructure demand tied to AI inference and agentic AI systems.
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