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Why Blackstone Thinks Anthropic Could Remain Junk-Rated After Its IPO
Blackstone has reportedly moved from expecting an investment grade upgrade to warning Anthropic could remain in the BB speculative grade range after its IPO.
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- Blackstone has reportedly moved from expecting an investment grade upgrade to warning Anthropic could remain in the BB speculative grade range after its IPO.
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openai.comCreate a landscape editorial hero image for this Studio Global article: How has Blackstone’s assessment of Anthropic’s likely post-IPO credit rating shifted from potential investment grade to a high junk rating i. Article summary: Blackstone’s reported shift is a retreat from an anticipated post-IPO upgrade, not an announced ratings-agency downgrade: it previously entertained investment-grade status but now warns that Anthropic may remain high spe. Topic tags: general, news, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts w
Blackstone has reportedly changed its outlook for Anthropic’s credit rating after the company goes public. It had previously expected an investment-grade rating, but now believes Anthropic may remain in the high speculative-grade, or “junk,” range. That is a reported expectation, not a new rating assigned by an agency.2
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The distinction matters for investors in Project North Star, the chip-financing deal in which Blackstone is an anchor investor. An IPO could raise Anthropic’s profile and bring in equity capital, but it does not by itself guarantee an investment-grade credit rating or cheaper borrowing.
Blackstone’s new outlook versus KBRA’s June rating
KBRA rated Anthropic BB+ in June, one notch below investment grade.6 Blackstone’s reported expectation of a post-IPO rating in the high BB range would leave the company below the investment-grade threshold, rather than delivering the crossing it had earlier anticipated.
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Reporting also says the proposed junior debt is expected to receive a rating similar to KBRA’s June assessment.34
44 That is an expectation, not a published rating for the tranche. A company’s issuer rating and a particular debt tranche’s rating are not necessarily identical; the tranche’s terms and position in the financing structure matter too.
What Blackstone is financing
Earlier reports described Project North Star as a roughly $60 billion financing package: about $42 billion in senior debt supported by a Broadcom guarantee and $18 billion in junior debt. Blackstone-managed funds were expected to provide $9 billion, half of the junior tranche, for financing linked to about 1.5 gigawatts of Google’s custom TPUs.5
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The junior debt was reported with a 10% coupon, while some coverage described the offered yield as above 10%.33
40 Coupon and yield are different measures, so the figures should not be treated as interchangeable. Reuters later reported a $63 billion financing involving Blackstone, Bank of America, Citi and Morgan Stanley, with senior debt of about $43.5 billion.
1 The available reporting does not explain how that later total relates to every detail of the earlier $60 billion structure.
What a speculative-grade rating could mean for borrowing and returns
A speculative-grade rating generally signals greater credit risk than an investment-grade rating. As a market implication, Anthropic could have to offer lenders higher borrowing costs than it would with an investment-grade rating; some investors with investment-grade mandates may also be less able to participate. Reporting has likewise described the rating risk as a possible constraint on borrowing costs and access to institutional capital.3
For junior-debt investors, the reported coupon offers a high income opportunity, but it is not a guarantee of realized return. Returns also depend on whether payments are made as agreed, the price paid for the debt, and what investors recover if the borrower cannot meet its obligations. Continued speculative-grade status could also make it harder for the debt to gain value on expectations of an upgrade. The junior tranche should be considered separately from the senior debt, whose reported Broadcom support changes its risk profile.5
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Why the IPO does not settle the credit question
Anthropic filed a public S-1 on October 26 and said it intends to list its Class A shares on the Nasdaq Global Select Market under the ticker ANT.29 Those are steps toward a proposed public offering, not evidence that an offering has closed or that the company’s credit rating has improved.
The ratings question is about debt-service capacity, not only the company’s potential equity value. Blackstone’s reported shift is a reminder that investors should not assume an IPO will automatically move Anthropic from BB+ territory into investment grade.2
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Blackstone has reportedly moved from expecting an investment grade upgrade to warning Anthropic could remain in the BB speculative grade range after its IPO.
Sources
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