Anthropic faces high junk credit rating prospects ahead of historic Nasdaq listing
TechCrunch|AIDEN Editorial|Oct 30, 2026
Private equity firm Blackstone has informed investors that Anthropic is likely to receive a speculative-grade double-B credit rating even after its upcoming initial public offering. The expected sub-investment rating threatens to sharply increase borrowing costs as the artificial intelligence lab plans over $800 billion in long-term infrastructure spending.
Artificial intelligence developer Anthropic is confronting severe credit market headwinds ahead of a planned Nasdaq initial public offering that ranks among the largest in the exchange history. According to a report by the Financial Times, Blackstone notified investors in Project North Star, a $63 billion semiconductor financing initiative for Anthropic, that the company will probably be assigned a top-tier junk rating in the double-B category by major credit rating agencies following its public listing. Anthropic filed its S-1 registration statement under the ticker ANT on Oct. 26, 2026, revealing $112 billion in cash and cash equivalents. Despite substantial equity interest and large cash reserves, fixed-income markets are taking a far more conservative stance toward the repayment capability of the venture.
The cautious sentiment in the debt market coincides with stricter artificial intelligence risk assessment standards driven by a U.S. executive order and international regulatory authorities. As traditional regulatory oversight and risk criteria extend into the financial sustainability of immense capital expenditures by tech companies, debt investors are increasingly scrutinizing large-scale borrowing structures. While Blackstone previously projected that Anthropic would secure an investment-grade rating within the year, feedback from major rating firms led the private equity giant to revise its outlook downward to speculative grade. In June 2026, KBRA assigned Anthropic a BB-plus issuer rating with a stable outlook, and major agencies continue to evaluate the massive capital spending plans of the firm within speculative boundaries.
Remaining in speculative territory significantly restricts access to capital, as conservative institutional investors such as large pension funds and life insurers face strict mandates limiting junk-bond exposure. While investment-grade borrowers can tap deep pools of low-cost capital, double-B borrowers must absorb steep borrowing costs. Anthropic aims to raise roughly $100 billion through its listing, yet the company has outlined more than $800 billion in capital infrastructure spending through 2045, making substantial external debt inevitable. The financial strain is already visible in Project North Star, where over $42 billion of senior debt carries investment-grade guarantees from Broadcom, while $18 billion in subordinated debt relies entirely on the standalone credit of Anthropic. Blackstone funds acquired roughly $90 billion of that unguaranteed subordinated portion under terms yielding over 10 percent, demonstrating that unbacked AI debt already carries double-digit interest costs.
— AIDEN Editorial Team
What this means for the market
The prospect of speculative-grade credit ratings for frontier model developers signals an industry-wide repricing of generative artificial intelligence infrastructure. As capital markets move beyond equity hype to evaluate debt repayment risks, firms committed to massive compute builds will face steeper borrowing costs and tighter liquidity. This financial shift will force AI laboratories to rely more heavily on expensive private credit structures, alter long-term capital expenditure timelines, or deepen operational dependence on established, investment-grade semiconductor partners for debt guarantees.
How this issue is unfolding
As generative artificial intelligence model developers raise tens to hundreds of billions of dollars in debt to secure supercomputers and specialized processors, capital markets are shifting their primary focus from equity valuation to long-term creditworthiness and debt repayment capability. Anthropic is preparing for one of the largest Nasdaq listings in history and holds $112 billion in cash assets, but its forecast of more than $800 billion in infrastructure investments through 2045 makes extensive external borrowing unavoidable. Blackstone, serving as an anchor investor, formally highlighted the risk of surging debt financing costs by revising its expectations based on criteria from major rating agencies, warning that Anthropic is likely to remain in speculative high-yield double-B territory rather than achieving an investment-grade BBB-minus rating post-IPO. Because institutional players such as pension funds and life insurers operate under strict regulatory limits regarding speculative-grade debt allocations, AI developers seeking financing through private credit and special-purpose borrowing vehicles face significantly higher capital expenses.
