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SoftBank Group shares surged 20% in Tokyo trading, adding approximately $35 billion to its market capitalization. According to reports, this move represents one of the company's sharpest rallies in years, triggered by Nvidia's quarterly results which exceeded already elevated market expectations. The Japanese conglomerate's gains are fundamentally tied to the AI boom through its strategic stake in Arm Holdings.
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Sign InThis surge follows Nvidia reporting record quarterly revenue of $26 billion, reinforcing investor confidence in the long-term demand for AI infrastructure. Per market data, major technology peers and semiconductor firms saw similar upward momentum as global valuations in the sector expanded. The scale of the rally reflects a broader validation of the artificial intelligence investment thesis across global markets.
Investors are now monitoring price stability following the SoftBank (9984.T) rally as of the May 21, 2026 close. Looking ahead, the economic calendar highlights US Retail Sales and Initial Jobless Claims on May 14, 2026, alongside scheduled Fed speeches which could influence market liquidity and risk appetite for high-growth technology assets.
Update: The positive momentum broadened across the Japanese market as the Nikkei 225 Index surged over 3.5% to reach 61,940 yen. According to reports, this rally was fueled by significant foreign investment inflows and news of a potential deal between the US and Iran, further boosting investor sentiment alongside the ongoing technology sector gains.