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Nikkei 225 Closes Lower, SoftBank Drops Nearly 4% as OpenAI Revenue Data Hits AI Market Confidence

TradingKey

AuthorYulia Zeng

Oct 9, 2026 6:57 AM

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On October 9, Japanese stocks closed slightly lower, with the Nikkei 225 Index down 0.02% to 69,030.92, while South Korean markets were closed. Japanese tech stocks showed mixed performance, as SoftBank Group fell 3.92% amid market concerns over AI growth prospects and financial strain from ongoing AI investments. Lower-than-expected revenue disclosures by OpenAI led investors to reassess high AI valuations, pressuring the supply chain. Concurrently, SoftBank founder Masayoshi Son is reportedly seeking up to $100 billion from Gulf investors to support expansion, though no final agreements have been secured.

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TradingKey - On October 9, Japanese stocks closed slightly lower, with the Nikkei 225 Index falling 11.19 points, or 0.02%, to close at 69,030.92. South Korean stock markets were closed for a holiday, with no trading conducted for the day.

japan-c61be0ca930f462ca964a7d3084a48c1

Source: TradingView

Japanese tech stocks saw mixed performance, with SoftBank Group closing down 3.92% at 5,803 yen (approx. $37), after dropping as much as 7% in morning trading; Kioxia fell 2.21% to 17,505 yen.

SoftBank's stock price came under pressure, driven on one hand by growing market concerns over the growth prospects of the AI industry, and on the other by financial strain stemming from the company's continued expansion of AI investments.

Earlier, the Financial Times reported that OpenAI disclosed annualized revenue of nearly $50 billion for September to investors, lower than the $70 billion figure previously widely cited in the market, prompting investors to reassess the commercialization progress and high valuations of AI companies. Following the news, stocks across the AI supply chain generally came under pressure, dragging down SoftBank as well.

Meanwhile, SoftBank founder Masayoshi Son is seeking new funding sources to support the company's expanding AI investment strategy. According to a Friday report by the Financial Times citing people familiar with the matter, Son has recently reached out to Gulf region investors, including the UAE, aiming to raise up to $100 billion. However, current discussions do not guarantee a final agreement.

This content was translated using AI and reviewed for clarity. It is for informational purposes only.

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Disclaimer: The content of this article solely represents the author's personal opinions and does not reflect the official stance of Tradingkey. It should not be considered as investment advice. The article is intended for reference purposes only, and readers should not base any investment decisions solely on its content. Tradingkey bears no responsibility for any trading outcomes resulting from reliance on this article. Furthermore, Tradingkey cannot guarantee the accuracy of the article's content. Before making any investment decisions, it is advisable to consult an independent financial advisor to fully understand the associated risks.

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