Eyeing $11.7 Trillion Corporate Bond Market, Anthropic and OpenAI Seek Instant Investment-Grade Ratings Post-IPO
Wall Street underwriters, led by Morgan Stanley and Goldman Sachs, are actively lobbying credit rating agencies to grant Anthropic and OpenAI investment-grade status immediately following their initial public offerings.
The move aims to secure direct access to the massive U.S. corporate bond market to fund their capital-intensive artificial intelligence buildouts, though credit analysts remain cautious.
People familiar with the discussions noted that an investment-grade rating would materially lower capital costs for both AI labs.
Crucially, it would unlock institutional demand across the $11.7 trillion U.S. corporate bond market, according to Securities Industry and Financial Markets Association (SIFMA) data through the first quarter of 2026.
Investment bankers pitching the agencies argue that public listings will generate massive liquidity windfalls and fortify balance sheets.
"Wall Street is essentially trying to downplay their aggregate debt burden under the thesis that both entities will soon be flush with equity capital," said a senior credit analyst familiar with the talks.
Precedents and Pitfalls
Elon Musk’s SpaceX set a rare precedent upon its June public debut, becoming the first major tech bellwether to secure an investment-grade rating at the time of its listing.
By comparison, mega-cap peers Meta, Netflix, and Tesla operated as public companies for a decade or more before obtaining high-grade status.
Days after listing, SpaceX issued $25 billion in debt backed by investment-grade marks across all three major rating agencies. However, the notes traded poorly in the secondary market post-issuance.
"Those issuances underperformed significantly," noted Andrzej Skiba, Head of U.S. Fixed Income at RBC BlueBay Asset Management. "Issuers would be well-advised to allow debt investors to familiarize themselves with their business models before tapping the market so aggressively."
Anthropic and OpenAI have historically financed hundreds of billions of dollars in semiconductors and datacenter capacity through private equity, venture backing, and off-balance-sheet debt supported by their tech partners' balance sheets.
In recent months, however, mounting investor unease over AI capital expenditures has driven financing costs higher.
Rating agencies are pushing back against immediate high-grade designations, maintaining that final assessments must await audited post-IPO disclosures. Key concerns include negative free cash flow, persistent net operating losses, and accelerating competitive pressure from low-cost Chinese open-weights foundation models.
Credit analysts also warned that reliance on annualized run rate (ARR) metrics masks underlying cash burn and operational unit economics.
"From a fundamental credit standpoint, OpenAI and Anthropic still look deeply speculative—they are burning cash," another senior credit analyst noted.
Unwinding Hundreds of Billions in Backstop Guarantees
The rating determinations carry profound balance-sheet implications for the tech giants financing the AI buildout. Strategic partners have extended hundreds of billions of dollars in credit guarantees under the assumption that both startups will soon independently tap public debt markets.
Regulatory filings reveal that Nvidia’s $105 billion credit backstop for OpenAI’s Ohio datacenter campus contains an automatic sunset clause that triggers once OpenAI secures a "satisfactory credit rating," underscoring its design as a temporary financing bridge.
Meanwhile, Oracle's own investment-grade status has come under severe strain following a recent debt downgrade tied to heavy borrowing for OpenAI's $300 billion datacenter roadmap.
Similarly, Alphabet and Broadcom have provided tens of billions of dollars in credit facilities to support Anthropic’s custom ASIC deployments, with both sponsors eager to wind down these exposure commitments once Anthropic accesses public debt markets directly.