SoftBank Group (TYO: 9984) experienced a dramatic decline exceeding 11% during Monday’s trading session, settling at 5,795.0 yen and ranking among the most significant decliners on the Nikkei 225 index, which itself retreated 2%.
The sharp downturn followed comments from Sam Altman, OpenAI’s chief executive, who stated during a recent magazine profile that the artificial intelligence company has no intentions of launching a public offering in 2026. This revelation dealt a significant blow to SoftBank, considering the Japanese investment powerhouse’s substantial exposure to OpenAI’s trajectory.
An initial public offering would have provided SoftBank with a rapid and substantial exit opportunity for its stake in the AI company. Previous fundraising efforts this year valued OpenAI at extraordinarily high levels, making the IPO route particularly appealing to stakeholders.
SoftBank, under the leadership of entrepreneur Masayoshi Son, has pledged approximately $65B toward OpenAI and has successfully obtained about $37B in financing throughout 2026 to support this massive commitment.
To underwrite this substantial wager on artificial intelligence, SoftBank has accumulated significant borrowings, including bridge financing collateralized by its existing asset portfolio.
The company announced last week its intention to settle $25.9B of an existing $40B credit line originally secured to bankroll its OpenAI investment. This payment deadline falls on September 15.
Meanwhile, SoftBank has successfully arranged a new $11.87B two-year financing facility, with commitments from roughly 20 banking institutions. This amount surpassed the company’s initial $10B funding goal, as reported by Bloomberg.
Additional financing strategies under consideration include a potential U.S. dollar-denominated bond offering worth up to $20B, plus a separate $10B margin facility secured against its OpenAI ownership stake.
The postponed IPO timeline wasn’t the sole factor unsettling investors. Anthropic’s chief executive, Dario Amodei, made headlines by advocating for a deceleration in artificial intelligence advancement, warning about potential dangers associated with the technology’s breakneck development speed.
Notable technology leaders endorsed his perspective, including Elon Musk from SpaceX and Demis Hassabis of Google DeepMind. OpenAI itself expressed agreement with Amodei’s cautionary stance.
For SoftBank, any pullback in AI innovation presents challenges across multiple dimensions. Its semiconductor intellectual property unit, Arm, has experienced substantial growth driven by AI-fueled chip demand. Any reversal in this trend could undermine Arm’s market value, which represents a critical component of SoftBank’s investment portfolio.
A generalized slowdown in artificial intelligence enthusiasm would similarly impact SoftBank’s broader technology investment holdings.
Notwithstanding Monday’s steep decline, SoftBank shares have gained approximately 26% year-to-date in 2026.
The company indicated last week that it expects to complete its nearly $65B investment in OpenAI by October, with the upcoming September 15 loan repayment representing a critical financial milestone.
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