Product Independently confirmed 2 publishers 2 min read Published Sep 21, 2026, 2:36 AM PDT

SoftBank seeks $11bn bond sale to partly fund OpenAI investment

The $10bn SoftBank owes OpenAI on 1 October is the exact size of the dollar leg of the bond it prices on 24 September. Yields on its 2031 paper have moved from 6.7% in January to about 8.2% in September.

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What happened

SoftBank has launched a bond sale of roughly $11bn, made up of $10bn in senior unsecured dollar notes and 1bn euros of euro notes, across five tranches running from three and a half to seven and a half years.
Pricing is set for 24 September and settlement for 29 September, with Citigroup and JPMorgan leading the sale.
On 27 February SoftBank committed $30bn to OpenAI through Vision Fund 2 at a $730bn pre-money valuation, payable in three equal installments on 1 April, 1 July and 1 October.
SoftBank said on 9 September that it had prepaid $25.9bn of the $30bn drawn against a $40bn facility arranged in March, leaving around $4.1bn outstanding.
S&P and Fitch both rate the group BB+, the top rung of speculative grade, and its 2031 dollar bond was yielding about 8.2% in September against 6.7% in January.

Why it matters

What it costs cost SoftBank has sold its entire $5.8bn Nvidia stake and about $9.2bn of T-Mobile shares, $15bn together, so part of what the OpenAI schedule costs is paid in positions the group no longer holds.
What it limits constraint The installment dates were fixed in February, so SoftBank pays on 1 October at whatever offshore investors are charging in the week the deal prices.
What doesn't add up contradiction SoftBank's own method put loan-to-value at 13% on 30 June while S&P assessed 33%, so anyone sizing the group's leverage before signing a dependency has to choose whose figure to use.
Who has to decide decision Teams modelling frontier-model costs into 2027 now have to decide whether to treat OpenAI's backing as venture appetite or as a high-yield credit whose price is set by bond buyers.

Next story · Invest · Oct 9

SoftBank looks to Gulf investors for up to $100 billion after borrowing to buy into OpenAI

Confirmed4 publishers

Most vendor-risk templates have a row for financial stability, and for teams building on OpenAI it gets filled in with a sentence about who is behind it. This week there is a number for that sentence. Three equal installments out of a $30bn commitment puts $10bn due on 1 October ^[6]^[18], and the dollar leg of the bond is $10bn ^[1]. The whole raise is about $11bn, roughly a billion more than the payment ^[1]^[22].

What the money costs is on the record. SoftBank paid 7.625% on three-and-a-half-year notes in April and 8.250% on five-and-a-halfs ^[9]. Carrying $10bn at that 8.250% runs about $825m a year in interest. The same $10bn at 4.75%, the coupon on the record retail bond SoftBank priced in Japan on 4 September, costs $475m ^[12]^[19]. For the same borrower, the two are $350m a year apart.

In February SoftBank said the OpenAI commitment would be financed first with bridge loans and later replaced by existing assets and other financing measures ^[7]. This bond is that replacement in the company's own terms, and most of the bridge it replaces has already been repaid ^[8]. Bloomberg, cited by Business Today, reported something narrower: the proceeds will partially fund a follow-on investment in OpenAI closing next month ^[3]. Arm is pledged against a $25bn margin loan and has not been sold ^[15]. Cumulative investment in OpenAI now reaches $64.6bn for a stake of about 13% ^[17].

Neither report addresses what OpenAI charges for its models, so nothing here is a forecast of token prices. What the deal prices is the capital behind the commitment, in an offering Bloomberg called one of the largest high-yield sales on record ^[24]. OpenAI is discussing a private round at a considerably higher valuation than the $730bn pre-money SoftBank paid, with final terms due on 24 September, the day the bond prices ^[23]^[4].

The test I would run on any vendor dependency has two columns. Is the spending committed or discretionary, and is it funded from cash and asset sales or from debt that gets repriced at every visit to the market. A vendor in the committed-and-repriced column keeps paying on schedule because the contract says so, and the cost of paying shows up later in pricing or in what gets built. SoftBank's 1 October payment sits in that column, and coupons and final guidance on the bond have not been reported ^[4].

What to watch

Coupons and final guidance when the deal prices on 24 September, and whether the gap to the 4.75% Japanese retail bond holds.
OpenAI's private round terms, due the same day, and the valuation it settles at above the $730bn pre-money SoftBank paid.
Whether the remaining $4.1bn of the March bridge facility is cleared from this raise or from another asset sale.

Clarity's read

What the record supports and how the coverage leans. The claims behind it follow.

Reality

Evidence72
Adoption65
Hype gap+12
Incentives70
Confidence68

Why these scores

Claim ledger

Ranked by verification strength, evidence, and original report placement.

[1]
SoftBank Group launched a bond sale of roughly $11bn, comprising $10bn in senior unsecured dollar notes plus an additional 1bn euros in euro notes, according to term sheets reported separately by Reuters and Bloomberg on Monday.
Reported SupportedView cited source
[2]
The deal comes in five tranches, with dollar notes at three and a half, five and a half, and seven and a half years, and euro notes at four and six years.
Reported SupportedView cited source
[3]
According to the Bloomberg report, the proceeds will partially fund a follow-on investment in OpenAI set to close next month.
Reported SupportedView cited source
[4]
Pricing is set for 24 September and settlement for 29 September. Coupons have not been reported, and neither has final guidance.
Reported SupportedView cited source
[5]
Citigroup and JPMorgan are leading the sale.
Reported SupportedView cited source
[6]
In a 27 February announcement, SoftBank committed $30bn to OpenAI through Vision Fund 2 at a $730bn pre-money valuation, payable in three equal installments on 1 April, 1 July and 1 October.
Reported SupportedView cited source
[7]
SoftBank said at the time that the investment would be financed initially through bridge loans and later replaced by existing assets and other financing measures.
Reported SupportedView cited source
[8]
SoftBank said on 9 September that it had prepaid $25.9bn of the $30bn drawn against a $40bn facility arranged in March, leaving around $4.1bn outstanding.
Reported SupportedView cited source
[9]
SoftBank's April notes came at 7.625% for three and a half years and 8.250% for five and a half years.
Reported SupportedView cited source
[10]
SoftBank's 2031 dollar bond was yielding about 8.2% in September, up from 6.7% in January.
Reported SupportedView cited source
[11]
S&P and Fitch both rate SoftBank Group BB+, the top rung of speculative grade.
Reported SupportedView cited source
[12]
SoftBank's record retail bond in Japan, priced on 4 September at 4.75%, is roughly 350 basis points below what offshore institutional investors are demanding for the same credit.
Reported SupportedView cited source
[13]
SoftBank widened a credit facility to $6.5bn on 18 September.
Reported SupportedView cited source
[14]
SoftBank sold its entire $5.8bn Nvidia stake and about $9.2bn of T-Mobile shares.
Reported SupportedView cited source
[15]
SoftBank has pledged Arm against a $25bn margin loan; Arm has not been sold.
Reported SupportedView cited source
[16]
SoftBank puts loan-to-value at 13% on its own method as of 30 June; S&P assessed it at 33%.
Reported SupportedView cited source
[17]
Cumulative SoftBank investment in OpenAI reaches $64.6bn for a stake of about 13%, bought at a $730bn pre-money valuation.
Reported SupportedView cited source
[18]
The 1 October installment is $10bn.
Derived Supported
[19]
Carrying $10bn at 8.250% costs about $825m a year in interest; the same $10bn at the 4.75% Japanese retail coupon costs $475m, a difference of $350m a year, matching the 350 basis point gap.
Derived Supported
[20]
The disclosed Nvidia and T-Mobile share sales total about $15bn.
Derived Supported
[21]
S&P's loan-to-value assessment is two and a half times SoftBank's own figure, and 20 percentage points higher.
Derived Supported
[22]
The roughly $11bn raise is about $1bn more than the 1 October installment it is funding.
Derived Supported
[23]
OpenAI is now discussing a private round at a considerably higher valuation, with final terms due on 24 September.
Reported InsufficientView cited source
[24]
Bloomberg reported that SoftBank is seeking to raise the equivalent of more than $11 billion in one of the largest high-yield bond offerings on record, citing people familiar with the matter.
Reported InsufficientView cited source

Sources

2 independent publishers whose own reporting we read for this story.

businesstoday.in
1 article · September 20, 2026
SoftBank plans $11 billion junk bond sale to fuel multi billion dollar OpenAI bet: Report - BusinessToday
thenextweb.com
1 article · September 21, 2026
SoftBank is reportedly raising about $11bn in bonds to cover its next OpenAI payment

Clarity analysis

How the coverage leans and what the record actually supports. Read the methodology

Perspective Coverage

How much of the coverage speaks to builders, operators and investors. It measures emphasis, not whether the story is right.

Builder

The useful fact for anyone building on OpenAI is where the next round's money comes from and what it costs. The Next Web puts the dollar leg at $10bn, the same size as the installment SoftBank owes on 1 October, and notes its 2031 paper yielding about 8.2% in September against 6.7% in January. BusinessToday supplies the label: a junk bond sale to fund the OpenAI bet. Neither publisher touches models, products or compute capacity.

Operator

The financing plumbing is all in The Next Web's account. SoftBank committed $30bn in February in three equal installments, funded first by bridge loans, and said on 9 September it had prepaid $25.9bn of the $30bn drawn against a March facility, leaving about $4.1bn. That prepayment is why an $11bn raise looks like a replacement of bridge debt. The asset side is moving at the same time: the entire Nvidia stake at $5.8bn, about $9.2bn of T-Mobile, a facility widened to $6.5bn on 18 September, and Arm pledged against a $25bn margin loan but still owned.

Investor

The coupon will settle this question, but it is not set until 24 September. What is on the record: April's notes at 7.625% and 8.250%, the 2031 bond near 8.2% in September, BB+ from both S&P and Fitch. The Next Web's sharpest comparison is domestic. SoftBank's record Japanese retail bond priced at 4.75% on 4 September, roughly 350 basis points inside what offshore institutions want for the same credit, which on $10bn is about $350m a year. Leverage depends on whose method you take, 13% on SoftBank's as of 30 June and 33% on S&P's.

Reality

Evidence, adoption, hype gap, incentives and confidence, each read independently from the current record on the scale shown beneath it. How these are measured.

Evidence72: 0100
Dated filings, second-hand term sheets
The deal size in both stories comes from term sheets that Reuters and Bloomberg saw and neither publisher reproduces. Everything around it is firmer: the $30bn commitment and its three payment dates, the 9 September prepayment, April's coupons, BB+ from S&P and Fitch, all carry dates and trace to SoftBank's own disclosures. The coupons are the one figure the reporting cannot hold yet, because they set on 24 September.
Adoption65: 0100
Cash already moved, book untested
SoftBank has already moved real cash: it drew and then prepaid $25.9bn of bridge debt, sold its whole Nvidia stake and about $9.2bn of T-Mobile, widened a facility to $6.5bn, and has two of the three OpenAI installments behind it. What this story turns on is still open, though: the notes have launched but not priced, so nobody has reported how much demand there is at what yield.
Hype gap+12: −100 understated0 aligned+100 overstated
Size relayed, purpose inferred
BusinessToday repeats Bloomberg's ranking of the sale among the largest high-yield offerings on record without naming another deal to compare it with, and calls the raise a bet on OpenAI when Bloomberg's own line says the proceeds only partially fund the follow-on. The tighter stretch is in our own framing: the match between the $10bn dollar leg and the $10bn October installment is arithmetic off SoftBank's February schedule, not a use-of-proceeds statement from the issuer. The Next Web pulls the other way by pointing out that $25.9bn of bridge debt has already gone back.
Incentives70: 0100
Issuer and its bookrunners supply the numbers
Every figure describing SoftBank's leverage originates with SoftBank or with people selling its paper. The clearest case is loan-to-value: 13% on the company's method, 33% on S&P's, off the same 30 June balance sheet. Term sheets reach reporters through the banks running the deal, Citigroup and JPMorgan, and Bloomberg's sources are unnamed. The Arm pledge sits in the same territory, since a $25bn margin loan against a stake the group still owns is leverage that a headline about asset sales can obscure.
Confidence68: 0100
Solid until the coupon prints
Dates, sizes and ratings in this reporting are consistent across both publishers and match SoftBank's filed disclosures, so the shape of the deal is reliable. What would move an assessment is still ahead of the story: the coupon on each tranche, whether the euro leg lands at €1bn, and the valuation OpenAI settles on when final terms come out the same day the bond prices.

Topics and entities

Topics

AI investment financing