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Altman Delays OpenAI IPO as SoftBank Faces Debt Clock

September 14, 2026 at 19:18 EDT

Funding & M&A
Foundation Models
Policy & Regulation

OpenAI will not list in 2026, Chief Executive Officer Sam Altman told Fortune, even after a confidential filing in June — a pause that lands as SoftBank Group Corp. prepares a large dollar bond sale to finance its OpenAI stake. Bloomberg Opinion columnist Shuli Ren argues that Altman can wait for a more favorable window, while founder Masayoshi Son may not have that luxury.

September 2026 · OpenAI / SoftBank

Altman can wait. Son’s clock is running.

OpenAI will not list in 2026, citing safety work after a June confidential filing. SoftBank, with a ~$65 billion OpenAI commitment, is raising high-yield debt as Tokyo shares slide.

$1T

Altman IPO floor

~$65B

SoftBank OpenAI bet by Oct.

~13%

SoftBank stake

~30%

Off June share peak

Valuation stand-off (same unit: USD billions)

Private mark cited in June (~$730B) versus Altman’s $1,000B listing floor.

$730B

Last private (NYT)

$1,000B

Altman IPO target

OpenAI room to wait

Stay private into 2027; Altman calls a 2026 listing ill-advised and says the firm does not feel IPO pressure while safety work continues.

SoftBank less flexible

$10–20B junk-bond talks, BB+ rating, remaining OpenAI cash due around October, and a ~11–14% Tokyo drop after the delay.

Funding path while the IPO waits

1. June confidential IPO file→2. Safety-first, no 2026 listing→3. SoftBank bonds & loans

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