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BUSINESS · OCT 1, 2026

SoftBank Shares Surge 24% on OpenAI AI Investment

SoftBank Group Corp. shares rose 24% in September as investors prioritized artificial intelligence returns over debt concerns following a massive commitment to OpenAI.

SoftBank Group Corp. saw its shares rise 24% in September, marking the company's first monthly gain in four months. This surge indicates that investors are prioritizing potential returns from artificial intelligence over concerns regarding debt and higher borrowing costs.

The optimism follows the release of the GPT-6 Astra model by OpenAI and the AI developer's plan to raise $30 billion at a $1.4 trillion valuation. SoftBank has committed $65 billion to OpenAI to support these advancements.

Investor confidence was further bolstered by a recovery in the shares of Arm Holdings Plc, SoftBank's chip unit. This recovery has increased market belief in the company's ability to manage its growing debt obligations while pursuing aggressive AI investments.


Reported across 3 outlets
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SoftBank Group Corp.OpenAIArm Holdings Plc

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