SoftBank's Profits Powered by OpenAI Stake as Portfolio Strategy Evolves

SoftBank JP3436100006

For the fourth consecutive quarter, SoftBank Group has reported a profit, with its substantial investment in OpenAI acting as the primary engine. The latest figures underscore how dependent the conglomerate's financial performance has become on the valuation swings of its key portfolio holdings, where gains from one major bet can offset widespread weakness elsewhere.

Key Financial Results (October?December):
* Net Profit: 248.6 billion Yen (compared to a loss of 369 billion Yen in the same period last year)
* Quarterly Valuation Gain from OpenAI: 4.2 billion US Dollars
* Vision Fund Result: 735.49 billion Yen (Previous Year: loss of 309.93 billion Yen)

The centerpiece of the quarter was undoubtedly the OpenAI position. SoftBank recorded a valuation gain of 4.2 billion US Dollars from its stake in the creator of ChatGPT. According to the quarterly presentation, the group has invested a total of approximately 34.6 billion US Dollars into OpenAI, giving it an ownership stake of around 11%. The carrying value of this investment is now listed at 54.4 billion US Dollars. Over the nine months ending December 2025, the cumulative contribution from OpenAI to earnings reached 2.8 trillion Yen.

On an earnings call, CFO Yoshimitsu Goto characterized the investment decision as successful. He also noted that 60% of SoftBank's assets are now directed toward investments aligned with "Artificial Superintelligence" (ASI).

Mixed Performance Across the Vision Fund

While the flagship Vision Fund swung decisively into the black year-over-year, the results revealed a bifurcated portfolio. The substantial profits from OpenAI were necessary to counterbalance valuation declines in several other major holdings. The company specifically highlighted headwinds at:
* Coupang, where a share price decline reduced portfolio value.
* Didi, which underwent a valuation markdown.
* ByteDance, where SoftBank's stake in the TikTok parent company was adjusted downward.

This dynamic illustrates a core vulnerability: while a single, outsized winner can compensate for weaker performers, overall earnings remain highly sensitive to valuation fluctuations across the entire investment book.

Funding the AI Ambition: Asset Sales and New Financing

To bankroll its aggressive push into artificial intelligence, SoftBank has been actively monetizing assets and expanding its credit facilities. Notable moves include the complete sale of its Nvidia position for 5.8 billion US Dollars in October, and the divestment of T-Mobile shares worth 12.73 billion US Dollars between June and December.

Furthermore, the group increased its margin loan secured against Arm shares to 20 billion US Dollars (from 13.5 billion), which has been fully utilized. Borrowing capacity against shares of SoftBank Corp was also raised to 1.2 trillion Yen (from 800 billion). During the quarter, SoftBank finalized two major transactions: a 22.5 billion US Dollar follow-on investment in OpenAI and the 6.5 billion US Dollar acquisition of Ampere Computing.

A New Reporting Segment Emerges

SoftBank is introducing a new "AI Computing Segment" in its reporting, which consolidates Arm with recently acquired semiconductor firms Graphcore and Ampere. For the nine months through December, this segment reported an operating loss of 91.8 billion Yen, attributed by the company to higher personnel costs and acquisition-related expenses for Ampere. A key question for investors is how quickly this new unit can achieve operational stability, as it currently generates integration costs while valuation gains are realized elsewhere in the portfolio.

Despite the earnings report, market reaction was muted. Shares closed 2.4% higher on the day of the release. However, the net profit of 248.6 billion Yen fell short of the average analyst estimate of 336.7 billion Yen. The wide range of forecasts, spanning from a profit of 1.1 trillion Yen to a loss of 480 billion Yen, highlights the inherent volatility and unpredictability of SoftBank's investment-driven earnings model.