SoftBank Group is considering a $10 billion to $20 billion bond offering to help refinance borrowing tied to its investment in OpenAI, as the Japanese technology conglomerate looks for ways to fund its enormous artificial intelligence commitments while managing its balance sheet. The potential transaction could be denominated in U.S. dollars and euros and may come as early as September, according to people familiar with the discussions cited by Bloomberg. The talks are ongoing and the size and timing of the offering could still change.

The potential bond sale comes after SoftBank arranged a $40 billion bridge-loan facility in March 2026 to support large investments, including its follow-on investment in OpenAI. SoftBank has already drawn $20 billion of that facility for OpenAI and plans to draw another $10 billion in October, while the bridge facility matures in March 2027. The company has said it intends to refinance and repay the bridge loan through a combination of asset-backed financing and other forms of takeout financing.

SoftBank Considers Up To $20 Billion Bond Sale

SoftBank is in discussions with investment banks about a potential bond offering worth between $10 billion and $20 billion, according to the Bloomberg report cited by the Economic Times and Reuters.

The proposed financing would primarily help SoftBank refinance debt associated with its investment in OpenAI rather than represent a fresh equity investment into the AI company.

The potential transaction demonstrates how SoftBank is increasingly using debt markets to support its strategy of investing heavily in artificial intelligence.

Proposed SoftBank Bond Deal

ParticularDetails
Potential bond size$10–20 billion
PurposeRefinance borrowing linked to OpenAI investment
Potential currenciesU.S. dollars and euros
Possible timingAs early as September 2026
Current statusDiscussions with investment banks
Final sizeNot yet decided
Source of reportBloomberg
SoftBank confirmationNot announced

SoftBank has not publicly confirmed the proposed $10–20 billion international bond transaction, and Reuters said it could not independently verify the Bloomberg report.

$40 Billion Bridge Loan Sits At The Center Of Financing

The proposed bond sale is closely linked to a $40 billion bridge loan facility SoftBank arranged in March 2026.

The company’s own annual report says the bridge facility was created to support several large investments. Of the $40 billion available, $20 billion had already been drawn for follow-on investments in OpenAI by April and July 2026. SoftBank plans to borrow another $10 billion in October for the remaining scheduled OpenAI investment.

The bridge facility matures in March 2027.

SoftBank’s OpenAI Financing Structure

Financing ItemAmount
OpenAI follow-on investment commitment$30 Bn
Already funded by July 2026$20 Bn
Scheduled October payment$10 Bn
Bridge loan facility$40 Bn
Bridge facility maturityMarch 2027
Potential bond refinancing$10–20 Bn

SoftBank says it intends to repay and refinance the bridge facility through several forms of takeout financing, with asset-backed financing expected to play a major role.

SoftBank Has Committed $30 Billion To OpenAI

The financing discussions come after SoftBank committed another $30 billion to OpenAI as part of its broader strategy to increase exposure to artificial intelligence.

The company says $20 billion of that commitment had already been funded in two tranches in April and July 2026, with the remaining $10 billion scheduled for October.

SoftBank’s annual report identifies the OpenAI investment as one of the company’s major transactions for fiscal 2026.

SoftBank
   ↓
$30 Billion OpenAI Follow-On Commitment
   ↓
$20 Billion Funded
   ↓
$10 Billion Scheduled For October
   ↓
Debt + Asset-Backed Financing
   ↓
Potential $10–20 Billion Bond Sale

The financing strategy highlights the enormous capital requirements involved in SoftBank’s AI expansion.

Why SoftBank Is Turning To The Bond Market

SoftBank has several potential ways to finance its investments, including selling assets, borrowing against its holdings and issuing debt.

The company has said it prefers asset-backed financing where market conditions allow because selling strategic holdings would mean giving up future upside.

SoftBank’s annual report specifically identifies listed assets such as Arm and its holdings in OpenAI as potential sources of financing capacity.

A bond sale therefore provides another option.

SoftBank’s Financing Options

Financing RoutePotential AdvantagePotential Drawback
Bond issuanceRaises cash without selling assetsIncreases debt
Asset-backed financingUses existing holdingsDepends on collateral value
Asset salesReduces debt exposureSacrifices future upside
Equity-like financingCan strengthen financial positionPotentially expensive/complex
Internal cashNo new debtLimited relative to investment needs

The potential $10–20 billion bond transaction would allow SoftBank to refinance part of its borrowing while retaining ownership of assets it believes could appreciate as AI adoption grows.

SoftBank Is Building A Larger AI Investment Portfolio

OpenAI is not the only major investment driving SoftBank’s financing requirements.

The company has also announced plans involving the $5.4 billion acquisition of ABB’s robotics business and the $3.1 billion acquisition of DigitalBridge, both of which were scheduled for completion by the end of 2026.

These investments fit into SoftBank founder Masayoshi Son’s broader strategy of positioning the group around artificial intelligence, robotics and the infrastructure required to support them.

Major SoftBank Investment Commitments

InvestmentValue
OpenAI follow-on investment$30 Bn
ABB robotics business$5.4 Bn
DigitalBridge$3.1 Bn
Bridge financing facility$40 Bn

The concentration of capital in AI-related assets has increased both the potential upside and the financial risk of SoftBank’s strategy.

AI Is Changing How Technology Companies Raise Capital

SoftBank’s potential bond sale is part of a broader trend in which AI companies and their financial partners are increasingly turning to debt markets to fund enormous infrastructure requirements.

AI development requires substantially more capital than conventional software because companies need data centers, advanced processors, networking equipment, electricity and cooling infrastructure.

That has pushed companies across the AI ecosystem toward increasingly sophisticated financing structures.

Recent reports have also pointed to large debt transactions being considered or arranged around AI infrastructure projects, underscoring the industry’s growing reliance on capital markets.

The AI Financing Cycle

AI Model Development
        ↓
Higher Computing Demand
        ↓
Data Center Expansion
        ↓
More Chips + Power
        ↓
Higher Capital Requirements
        ↓
Debt / Equity / Asset Financing
        ↓
Further AI Investment

SoftBank sits one level above many of these companies as a major investor and therefore needs to finance its own exposure to the AI ecosystem.

Bond Sale Could Help Refinance The Bridge Loan

The proposed bond proceeds are expected to be used partly to repay the $40 billion bridge facility secured earlier this year.

A bridge loan is generally designed as temporary financing until a borrower can arrange longer-term funding.

SoftBank’s March 2027 maturity date therefore creates a deadline for replacing or repaying the facility.

The proposed bond sale could provide part of that longer-term financing.

Bridge Loan Vs. Potential Bond Financing

FeatureBridge LoanPotential Bonds
PurposeTemporary acquisition/investment fundingLonger-term refinancing
SoftBank facility$40 Bn$10–20 Bn potential
MaturityMarch 2027Not disclosed
Interest structureLoan termsBond coupon
Asset sales requiredNot necessarilyNot necessarily
Investor baseBanks/lendersBond investors

The final structure will depend on market conditions, investor demand and the cost of borrowing when SoftBank approaches the market.

SoftBank’s Balance Sheet Is Under Greater Attention

SoftBank’s aggressive investment strategy has made its financial leverage an increasingly important issue for investors.

The company itself emphasizes loan-to-value (LTV) as a key measure of financial discipline. Its CFO, Yoshimitsu Goto, has said that unlike net asset value, LTV can be directly controlled through investment discipline and financing decisions.

SoftBank has several mechanisms available to manage that ratio.

These include limiting additional net debt, monetizing holdings, asset-backed financing and potentially selling assets.

SoftBank’s LTV Management Approach

ToolObjective
Limit net debt growthProtect balance sheet
Asset-backed financingRaise capital against holdings
Asset salesGenerate cash
Hybrid financingAdd equity-like funding
Portfolio managementControl exposure

The potential bond offering therefore needs to be viewed within this broader balance-sheet management strategy.

Arm Could Become An Important Financing Asset

One of SoftBank’s most valuable publicly traded assets is its stake in Arm Holdings, the semiconductor architecture company.

SoftBank has indicated that listed holdings such as Arm could provide financing capacity in the future. However, the company has also said that it prefers asset-backed financing where possible because outright sales would eliminate potential future gains.

This creates a strategic choice.

SoftBank can monetize assets immediately, or it can borrow against them and retain exposure to their future value.

The latter approach can preserve upside but increases financial obligations.

OpenAI Investment Has Become Central To SoftBank’s Strategy

The scale of SoftBank’s OpenAI commitment illustrates how dramatically the group’s investment strategy has changed.

OpenAI is no longer simply one portfolio company among many. The planned $30 billion follow-on investment makes it one of SoftBank’s largest individual commitments.

The investment also aligns with Son’s broader belief that AI will reshape software, robotics, computing and industrial systems.

The company is consequently building exposure not only to AI models but also to the infrastructure and robotics businesses that could benefit from widespread AI adoption.

SoftBank Is Also Raising Domestic Debt

The potential $10–20 billion international bond sale would come alongside a separate large domestic bond offering.

SoftBank has announced plans to issue ¥1 trillion, or about $6.3 billion, of seven-year yen-denominated retail bonds, according to the Wall Street Journal. The offering is expected to carry a coupon in the range of 4.3% to 4.9% and would also be used to refinance existing debt and support AI investments.

SoftBank’s Recent Financing Activity

FinancingApproximate ValueMarket
Potential OpenAI-related bond sale$10–20 BnDollar/euro
Planned retail bond~$6.3 BnJapan
Bridge loan$40 BnBank financing
OpenAI investment commitment$30 BnPrivate investment

The combination demonstrates the scale of capital SoftBank is mobilizing around its AI strategy.

Higher Borrowing Comes With Higher Risk

Debt financing can help SoftBank maintain exposure to high-growth assets, but it also introduces additional financial obligations.

If the value of SoftBank’s investments rises, leverage can amplify returns. But if AI valuations fall sharply, the same leverage can increase pressure on the company’s balance sheet.

This is particularly relevant because SoftBank’s portfolio is heavily exposed to technology and AI-related assets.

International investors may therefore demand a higher yield to compensate for the company’s risk profile.

The cost of the potential bond issue will ultimately depend on market conditions, SoftBank’s credit standing and investor appetite for technology-focused corporate debt.

The Bigger Picture

SoftBank’s potential $10 billion to $20 billion bond sale illustrates how the AI boom is increasingly being financed through sophisticated capital-market structures rather than equity alone. The proposed offering would help refinance borrowing connected with SoftBank’s massive OpenAI investment while allowing the company to retain ownership of assets such as Arm and other strategic holdings.

The financing also highlights the scale of Masayoshi Son’s AI ambitions. SoftBank has committed $30 billion to its OpenAI follow-on investment, arranged a $40 billion bridge facility and is simultaneously pursuing other major transactions in robotics and digital infrastructure. The challenge will be balancing the potential returns from those investments against the additional leverage required to finance them.

Looking Ahead

SoftBank’s immediate priority will be completing the remaining $10 billion payment on its OpenAI commitment and arranging longer-term financing before the $40 billion bridge facility matures in March 2027. A $10–20 billion bond sale could become an important component of that refinancing plan, although the final amount, currency, timing and terms remain subject to market conditions and ongoing discussions with investment banks.

The bigger test will be whether SoftBank can continue expanding its AI portfolio without allowing leverage to become a constraint. The company has multiple financing options, including asset-backed borrowing, bond issuance and asset sales. If AI-related assets continue to appreciate, SoftBank could benefit significantly from its aggressive positioning. If valuations weaken, however, the debt used to finance those investments could increase pressure on its balance sheet and make disciplined capital management increasingly important

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