SoftBank's AI Ambitions Fuel Debt Concerns Amid PayPay Windfall

S&P warns on SoftBank's liquidity as it plans a $40B loan for AI, including OpenAI. This follows a strong $12.1B PayPay IPO, part of a $70B+ AI funding push.

A landmark U.S. listing for its payments subsidiary has delivered a significant capital infusion to SoftBank Group, yet the conglomerate faces mounting financial pressure as it doubles down on artificial intelligence investments. This strategic pivot has prompted a major credit rating agency to revise its outlook on the firm.

Rating Agency Sounds Alarm on Liquidity

In a direct response to SoftBank's financing plans, S&P Global Ratings shifted its outlook on the company from stable to negative. The agency affirmed SoftBank's long-term issuer credit rating at "BB+" but issued warnings concerning liquidity risks and portfolio quality. Reflecting heightened market concern, the group's credit default swaps (CDS) widened to approximately 355 basis points, marking an eleven-month high and the highest level among Japan's major corporate entities.

The catalyst for this scrutiny is SoftBank's aggressive funding strategy. To finance further investments in AI, including a planned $30 billion commitment to OpenAI, the company is arranging a bridge loan of up to $40 billion. This would represent the largest dollar-denominated borrowing in its history, with an expected term of about twelve months. A consortium led by four banks, including JPMorgan Chase, is facilitating the loan.

PayPay IPO Delivers Strong Market Debut

The capital from this debt will supplement funds raised through recent asset monetization. The initial public offering of PayPay on the Nasdaq proved exceptionally successful, standing as the largest U.S. listing by a Japanese company in ten years. Its American Depositary Receipts (ADRs) launched at $16, closing the first trading day at $18.16—a 14% gain. By Friday, March 13, the ADRs had climbed further to $21.14, representing an additional 16.4% increase and giving the company a valuation of $12.1 billion.

SoftBank and its telecommunications subsidiary retain a majority stake, as the offering comprised only 8% of outstanding shares. PayPay boasts a formidable position in its domestic market, with 72 million users in Japan—roughly half the country's population—and an estimated 20% share of the cashless payments market. CEO Ichiro Nakayama indicated openness to a potential dual listing in Tokyo when conditions are favorable. The company aims to complete its integration with Line Pay by the end of March 2026 and is focusing on leveraging its vast transaction data and a partnership with Visa for future growth.

Asset Sales Fund AI Pivot

The PayPay listing is the latest move in a broader strategy of asset divestment to fuel AI initiatives. Since 2025, SoftBank has channeled over $70 billion into AI, financed through a mix of debt and portfolio sales. Notable divestments have included stakes in T-Mobile US and Nvidia, following a pattern set by the 2023 IPO of Arm Holdings.

Founder Masayoshi Son's current plan involves investing the additional $30 billion into OpenAI in three tranches of $10 billion each throughout the current year. This would increase SoftBank's stake in the AI leader from approximately 11% to 13%. Consequently, the proportion of non-publicly traded assets in SoftBank's portfolio is projected to rise from an estimated 42% to over 50%.

S&P outlined conditions that could restore a stable outlook: an improved loan-to-value ratio achieved through further asset sales, and a potential IPO of OpenAI that would enhance portfolio liquidity. However, the agency noted that such a listing remains contingent on an uncertain macroeconomic environment and prevailing market concerns about a potential AI valuation bubble.