SoftBank Group Corp's wager on artificial intelligence is yielding significant interim results. The Japanese technology investment giant reported quarterly earnings that far exceeded market forecasts, primarily driven by a substantial increase in the valuation of its stake in OpenAI.
For the fourth quarter of fiscal year 2026, SoftBank recorded a net profit of 1.83 trillion yen (approximately $116 billion). This figure dramatically outperformed the average analyst estimate of 295.2 billion yen, representing a result roughly six times higher than expected. As of the end of March, the cumulative investment gain from SoftBank's holdings in OpenAI reached $45 billion.
On the capital deployment front, SoftBank is intensifying its bets. The company disclosed that it completed borrowings totaling $20 billion in April 2026, with the raised funds primarily allocated for investment in OpenAI. Of this amount, $2.5 billion was repaid within the same month. Founder Masayoshi Son had previously committed to increasing SoftBank's total investment in OpenAI to $64.6 billion by the end of the year.
These results provide strong validation for Son's ambitious AI strategy. However, market concerns regarding SoftBank's highly concentrated bet on a single asset persist. Concurrently, several of its core listed holdings underperformed during the same period, presenting underlying risks.
**Quarterly Data Vastly Exceeds Expectations as Son Continues Leverage to Amplify AI Bet**
The highlight of this quarter's performance was almost entirely concentrated on OpenAI. Since SoftBank's initial investment in OpenAI at a valuation of $157 billion, the valuation of ChatGPT's parent company has skyrocketed to $852 billion, marking an increase of over fourfold. This continuous valuation inflation directly translated into massive paper gains for SoftBank, serving as the core variable that propelled quarterly net profit beyond expectations.
Nevertheless, SoftBank's major listed holdings performed poorly during the same period. Shares of core holdings such as Coupang Inc. and Grab Holdings Ltd. declined in the quarter, dragging on the company's overall profitability and partially offsetting the valuation gains from OpenAI.
To support its grand ambitions in artificial intelligence, Masayoshi Son is pursuing a dual-track strategy of "monetization + leverage"—selling off some legacy holdings while significantly increasing SoftBank's debt load.
Son has successively unveiled data center investment plans worth hundreds of billions of dollars and has repeatedly raised the investment commitment to OpenAI. The $20 billion borrowing completed by SoftBank in April this year is a direct manifestation of this strategy.
**Intensifying Competition and Target Shortfalls Raise Concerns**
Despite the impressive paper gains, SoftBank's heavy reliance on OpenAI is drawing external scrutiny. Competition in the AI field from Anthropic PBC and Google continues to heat up. Meanwhile, reports indicate that ChatGPT has failed to meet sales and user growth targets, casting a shadow of uncertainty over SoftBank's core asset.
Regarding SoftBank's strategy of betting heavily on a single entity, Richard Kaye, co-head of Japan equity strategy at Comgest Asset Management, noted this is not a challenge unique to SoftBank. "For any global mega-cap tech company, it's extremely difficult to spread bets among multiple competing players," he stated. "SoftBank is not fundamentally different in this regard."
Analysis suggests that SoftBank's underlying rationale does not rely entirely on a single-point bet on OpenAI. Stable assets such as chip designer Arm Holdings Plc and its Japanese telecommunications subsidiary SoftBank Corp. provide the group with a relatively solid operational foundation.
Richard Kaye pointed out that SoftBank's long-term investment track record has been strong, "perhaps better than the evaluation sometimes given by the outside world." These diversified assets can, to some extent, smooth overall performance during short-term fluctuations in OpenAI's valuation, providing a buffer for Son's AI investment strategy.
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