SoftBank Prices $11.1 Billion in High-Yield Bonds for Its OpenAI Bet

The order book closed on a sale that beat a record set twelve years ago in a different industry and a different decade.

SoftBank Group completed an $11.1 billion offering of dollar and euro notes on September 24, according to Reuters, surpassing the $10.9 billion Numericable sale in 2014 to become the largest high-yield corporate bond issue on record. The money replaces roughly $10 billion of bridge loans tied to the Japanese group’s investment commitment in OpenAI.

The dollar portion was sold in three pieces: $1 billion of 3.5-year notes at 8.625 percent, $4.5 billion of 5.5-year notes at 9.25 percent, and $4.5 billion of 7.5-year notes at 9.75 percent. Two euro tranches of 500 million euros each priced to yield 7.125 percent and 8 percent.

Those coupons tell the story. SoftBank is paying close to double digits to borrow for seven and a half years, a price that reflects both its credit standing and the use of proceeds. Investors in high-yield debt are being asked to fund an equity position in a private company that has not yet listed and spends cash at a rate its backers have described as necessary rather than temporary.

The commitment behind the borrowing is large. SoftBank has pledged roughly $65 billion for a stake of about 13 percent in OpenAI. None of that position trades, and none of it generates a dividend. Its value is set by funding rounds and internal marks, which means the collateral logic supporting SoftBank’s other borrowings does not apply here in the usual way.

Volume on this scale has reshaped one regional market. SoftBank has issued $14.6 billion of high-yield debt this year, more than 60 percent of the entire Asia-Pacific and Japan high-yield market, according to data cited by Reuters. A single borrower accounting for most of a region’s junk issuance concentrates risk in the hands of fund managers who may not have intended to make such a concentrated bet.

Analysts said the refinancing does solve a real problem. Bridge loans are short-dated and must be repaid or rolled, and rolling them in a stressed market is the kind of event that forces asset sales. Replacing them with 5.5-year and 7.5-year paper pushes the maturity wall well past the point at which OpenAI is expected to pursue a listing.

The tranche sizing shows where the appetite sat. Three quarters of the dollar deal went into maturities of five years or longer, the part of the curve most sensitive to credit judgment rather than rate expectations. Buyers willing to hold SoftBank paper past 2030 are expressing a view on OpenAI’s valuation, whether they describe the trade that way or not.

The bridge facilities being retired were themselves a recent structure, put in place to move quickly on a stake that could not wait for a bond syndication. Bridge lending is a promise to arrange permanent financing later, and later arrived this week with a maturity extension and a fixed coupon attached.

Rating agencies have kept the group’s paper in speculative territory, which is what makes the coupons necessary rather than optional. A borrower with an investment-grade profile raising the same amount for the same purpose would have paid several hundred basis points less, and the difference is the market’s estimate of the risk that OpenAI’s valuation does not hold.

The euro tranches add a second consideration. European buyers have been receptive to dollar-denominated technology credit, but currency exposure sits with the issuer unless hedged, and SoftBank reports in yen. Currency movements against a 9 percent coupon can swamp the return on the underlying asset.

The trade is characteristic of founder Masayoshi Son, who has built his reputation on concentrated positions taken when others hesitated. The Vision Fund’s portfolio produced both the group’s largest gains and its deepest losses, and Son has said publicly that he intends to be judged on the AI wagers now on the books.

What has changed is the funding mix. Earlier SoftBank cycles leaned on equity, bank facilities and asset sales. This one leans on public credit markets, which are more transparent about risk and quicker to reprice. High-yield investors can sell, and a widening spread is visible to every counterparty the group deals with, including the lenders it will approach next.

The notes also sit ahead of the equity. If OpenAI’s valuation rises, convertible and margin structures capture the upside while bondholders collect fixed coupons. If it falls, the bonds still get paid first, and the equity holders absorb the difference. SoftBank has effectively sold the downside in one instrument and kept the upside in another.

What the offering leaves open is the path to repayment. The notes mature long before OpenAI is likely to distribute cash, so the group will need a listing, a secondary sale of its stake, or another refinancing. Each of those depends on a valuation no public market has tested, and the bondholders who bought at these yields are underwriting that test.

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