SoftBank's Investment in OpenAI Drives Profit But Raises Risks

By Patricia Miller

May 13, 2026

2 min read

SoftBank's reliance on OpenAI has driven significant profits but also raised concerns about investment risk concentration.

#How is SoftBank Group's Future Linked to OpenAI?

SoftBank Group is increasingly becoming reliant on OpenAI, reflecting a significant transformation in the investment landscape. The Tokyo-based investment conglomerate recently announced that nearly all of its Vision Fund’s gains for the fiscal year ended March were attributed to its OpenAI investment, which alone generated about $45 billion in gains following more than $30 billion invested into the AI startup.

This heavy reliance means that approximately 98% of the returns from the Vision Fund rest on a single company. Other portfolio investments, such as Coupang, DiDi Global, and Klarna, actually detracted from performance, particularly in the last quarter, where the Vision Fund recorded roughly $20 billion in gains, almost entirely due to OpenAI while the other investments performed poorly.

#What Investments Have Been Made?

SoftBank Group has committed over $64 billion to OpenAI through its Vision Fund. This investment strategy turned the AI company into the focal point of SoftBank’s overall AI strategy. The initial investments began in 2024 and quickly expanded into early 2026. By February 2026, SoftBank had already allocated around $34.6 billion before announcing an additional $30 billion investment that raised its ownership stake in OpenAI to approximately 13%.

#What Has Driven OpenAI's Valuation?

OpenAI’s valuation has experienced remarkable growth, skyrocketing from $157 billion in October 2025 to $852 billion by March 2026. This represents an astonishing increase of about 5.4 times within just five months. Additionally, OpenAI achieved a monthly revenue run rate hitting $2 billion by March, illustrating strong performance in the competitive AI market.

#What Were SoftBank’s Overall Financial Results?

In its earnings report, SoftBank disclosed a net profit of 5 trillion yen for the fiscal year, primarily propelled by growth in the Vision Fund and its telecommunications sector. However, executives have emphasized the importance of maintaining financial discipline as the company navigates an increasing exposure to the AI sector. This careful approach is crucial in light of the high concentration of returns linked to a single investment like OpenAI.

As SoftBank deepens its ties with OpenAI, investors should remain attentive to the implications of such high-stakes investments and their potential ripple effects in the broader market.

Important Notice And Disclaimer

This article does not provide any financial advice and is not a recommendation to deal in any securities or product. Investments may fall in value and an investor may lose some or all of their investment. Past performance is not an indicator of future performance.