SoftBank Revives $10B Loan Talks Over OpenAI Stake

SoftBank Group, the Japanese technology investor behind stakes in Arm, T-Mobile and OpenAI, is back at the negotiating table with a group of major banks over a proposed 10 billion dollar loan secured by its OpenAI holdings, according to people familiar with the discussions. The renewed talks come after an earlier version of the deal stalled.

The sticking point the first time around was valuation. Private company shares, unlike listed equities with a real time price, market cap and daily percentage move that traders can check at any moment, are notoriously hard to mark for collateral purposes. OpenAI has no ticker, no public P/E ratio, no EPS figure and no 52 week trading range to anchor a lender's risk model. That opacity made banks hesitant to lend against the stake without extra protection.

SoftBank's Guarantee Structure and Why It Matters

To get the loan moving again, SoftBank is reportedly offering to personally guarantee repayment, giving the lending consortium recourse to the parent company itself if the pledged OpenAI shares lose value. That shifts the credit risk away from a speculative private valuation and onto SoftBank's own balance sheet, which does trade publicly and carries its own set of financial metrics that analysts track closely, including debt load, dividend policy and cash flow from its Vision Fund investments.

The consortium expected to underwrite the facility includes Goldman Sachs, JPMorgan Chase and Mizuho Financial Group, according to people with knowledge of the talks. None of the three banks commented publicly, and SoftBank and OpenAI did not respond to requests for comment either. The size of the loan, 10 billion dollars, would rank among the largest financings tied to a single private stake in the current AI investment cycle, reflecting both the scale of SoftBank's OpenAI position and the appetite among global banks to get exposure to the AI buildout without taking direct equity risk.

Collateral Risk Without a Public Price Tag

Lending against private shares is structurally different from a margin loan against a Nasdaq listed stock. There is no daily closing price to mark to market, no options chain signaling implied volatility, and no analyst consensus on earnings power. For a company valued in the tens of billions through funding rounds rather than public trading, a swing in sentiment or a down round can reprice the collateral overnight with no liquid market to test that new value. That is precisely the gap SoftBank's guarantee is designed to close: if OpenAI's implied value drops and the collateral cushion erodes, the banks can fall back on SoftBank as a corporate obligor rather than trying to seize and sell an illiquid private stake.

For SoftBank, the arrangement lets it monetize part of its OpenAI exposure without an outright sale, preserving upside if OpenAI's valuation keeps climbing while still generating liquidity now. For the banks, the guarantee converts what would otherwise be a bet on a single unlisted asset's valuation into something closer to unsecured exposure to SoftBank's own credit profile, a trade many large lenders are evidently more comfortable underwriting.