SoftBank's Two-Pronged Capital Push: SB Energy's Japan Listing and an $11.87 Billion Credit Line

SB Energy filed for a $500M Japanese share sale ahead of its Nasdaq listing, while SoftBank grew an OpenAI-linked credit line to $11.87 billion.

SoftBank Group is simultaneously tapping Japanese retail investors and the syndicated loan market, stitching together two separate funding channels as it banks the enormous upfront costs of AI data centers and power generation.

SB Energy, the conglomerate's energy subsidiary, filed paperwork in Tokyo on Tuesday for a domestic share sale aimed at raising up to $500 million ahead of its planned US listing. Daiwa, PayPay Securities, Rakuten and SBI are acting as selling agents for the Japanese tranche. The unit is slated to trade on the Nasdaq under the ticker SBE, with Reuters reporting that SoftBank is targeting a valuation of as much as $50 billion for the business.

Two heavyweight technology names have already locked in commitments. Nvidia has agreed to a $1.5 billion private placement at the offer price, while OpenAI holds warrants worth roughly $5.5 billion.

The timing reflects the capital intensity of SB Energy's pipeline. In Texas and Ohio, 8.8 gigawatts of data center capacity is either under construction or firmly contracted, backed by 5.5 gigawatts of usable power plant capacity intended to serve that electricity demand on site.

A Fresh Credit Facility, and an Old One Retired

On the borrowing side, SoftBank has expanded a credit facility tied to its OpenAI ambitions to $11.87 billion, up from an original target of $10 billion. The two-year line was arranged last week with commitments from around 20 banks.

The new facility feeds directly into the group's OpenAI commitments, and it arrives alongside a broader reshuffling of obligations. SoftBank has said it will repay the outstanding balance of an earlier $40 billion credit line taken out at the start of the year to fund the OpenAI investment. The remaining $25.9 billion under that facility is due to be settled on Tuesday.

That refinancing sits within a wider, multi-channel strategy. Early in September, the group placed a retail bond in Japan worth one trillion yen — about $6.3 billion — carrying a 4.75 percent coupon. Chief financial officer Yoshimitsu Goto is also meeting investors in New York through September 17, testing appetite for a possible US dollar high-yield bond issue.

A Bruising Start to the Week

The funding news landed against a rough backdrop for technology and semiconductor stocks. On Monday, the sector came under heavy selling pressure after cautionary remarks from industry figures soured sentiment. Dario Amodei, chief executive of Anthropic, publicly urged a slower pace of development on advanced AI models and called for external audits. Sam Altman, his counterpart at OpenAI, made clear that an initial public offering for his company will not happen this year and is not expected before 2027.

SoftBank's shares closed Monday at EUR 32.07, a daily loss of 14 percent. By Tuesday's session the stock had recovered to EUR 34.77, a gain of 7.3 percent — a measure of relief for the conglomerate after the turbulent start to the week, though the short-term swings have done little to alter SB Energy's operational expansion.