SoftBank has launched an unprecedented $11 billion junk bond offering with yields reaching 9.75%, reflecting investor concerns over the risks of CEO Masayoshi Son’s extensive bets on artificial intelligence ventures. The offering highlights the financial strain and market scrutiny around SoftBank’s strategy of leveraging debt to maintain sizable stakes in AI companies.
- SoftBank issues $11 billion junk bonds at up to 9.75% yield, its highest ever.
- Massive AI investments, including $64.6 billion backing of OpenAI, heighten risks and scrutiny.
- Shares down 38% since June peak; credit default swap costs increase 24%.
What happened
SoftBank recently completed a historic $11 billion junk bond offering, marking its largest issuance to date and featuring the highest coupon rates in company history, reaching 9.75%. This bond sale is part of SoftBank’s strategy to raise capital without divesting assets it expects to appreciate, notably large holdings in artificial intelligence companies such as OpenAI. This move comes alongside increased corporate borrowing trends among tech giants in 2026.
CEO Masayoshi Son’s AI-centric investment approach includes substantial funding allocations exceeding $64 billion, particularly in ChatGPT creator OpenAI. SoftBank has relied on both asset sales and now debt issuance at elevated yields to fuel this expansion. The issuance reflects confidence in AI-driven assets' long-term potential despite current heightened market risks and investor wariness about portfolio concentration.
Why it matters
The size and yield of SoftBank’s junk bond offering highlight the financial and reputational pressure on CEO Son to validate his 'all-in' AI investment strategy. SoftBank’s elevated borrowing costs exceed those of other major tech players which signals heightened perceived risk from its concentrated exposure to AI ventures and the potential volatility those entail. Investors are scrutinizing whether returns on these large-scale AI bets will materialize promptly enough to justify the aggressive debt strategy.
SoftBank's shares peaked mid-2026 but subsequently dropped 38%, while costs to insure its debt against default increased 24%, underscoring market skepticism. These dynamics underline how Son’s gamble on AI – following mixed past successes like Alibaba and WeWork – faces uncertain outcomes. The company’s reliance on partnerships with AI companies for strategic value, as well as potential future listings of its AI-related assets, adds complexity to the investment calculus.
What to watch next
Market participants and analysts will closely watch SoftBank’s ability to monetize its AI portfolio, including potential public listings such as the planned IPO of data center firm SB Energy, where OpenAI is an investor and customer. The valuations assigned to these AI assets and their revenue trajectories will be key indicators of the viability of Son’s broader AI investment thesis and his management of credit risk amid rising borrowing costs.
Investor sentiment toward SoftBank’s concentrated strategy will likely continue to fluctuate based on announcements regarding AI partners’ performances and broader market conditions affecting credit spreads and equity prices. The company’s next moves in refinancing, asset sales, or partnerships could signal whether it can sustain confidence and deliver solid returns from its high-stakes AI commitments.