DoubleLine Capital founder Jeffrey Gundlach wrote on X on 2 November that “Anthropic hoping to get an investment grade bond rating is simply absurd,” adding that any rating agency that might give such a rating “should be investigated/shut down immediately.” The post went up at 04:57 UTC and had drawn about 42,700 views by mid-morning.
The rating matters to Anthropic’s own balance sheet. Its Form S-1 says that once it obtains an investment-grade rating from at least two of Moody’s, S&P and Fitch, it may elect to release the guarantees and collateral behind its $15 billion revolving credit facility. Kroll already rates Anthropic BB+, one notch below investment grade; a BB rating would be two notches below, by our arithmetic.
The key insight: Jeffrey Gundlach wrote on X on 2 November that an investment-grade rating for Anthropic would be “simply absurd”; Anthropic’s own S-1 shows that such a rating from two of Moody’s, S&P and Fitch is what would let it release the guarantees and collateral on its $15 billion revolver, while Kroll already rates it BB+, one notch short.
The full post reads: “Anthropic hoping to get an investment grade bond rating is simply absurd. Any rating agency that might give such a rating should be investigated/shut down immediately.” It does not name an agency, a bond or a rating level, and it gives no reasoning beyond those two sentences.
Benzinga, which reported the post on 2 November, set it against reports that Blackstone now expects Anthropic to get a high speculative-grade, or “junk,” rating after its planned IPO, rather than the investment-grade status it previously anticipated. Benzinga attributes that to a Financial Times report, as relayed by Reuters.
Notches below AAA on the standard letter scale: Kroll’s BB+ issuer rating on Anthropic, a BB rating two notches below, and the lowest investment-grade grade, BBB-. Sources: Benzinga, 2 Nov 2026; Anthropic Form S-1. Notch counts are our arithmetic.
What Anthropic’s Filing Ties to the Rating
Anthropic’s S-1, filed with the SEC on 26 October, describes an Amended and Restated Credit Agreement signed in September 2026 that provides for a $15 billion senior secured revolving credit facility maturing on 4 September 2031. The filing says the facility is guaranteed by certain material subsidiaries and secured by substantially all of Anthropic’s assets.
The same section says that once Anthropic has obtained an investment-grade rating from at least two of Moody’s, S&P and Fitch, it may elect to have all guarantees and security interests released. After that date, the filing says, both the commitment fees and the interest margin on the facility will vary with Anthropic’s credit ratings.
Business Pill · Financial Conditions Explained
Financial conditions explained: how the cost and availability of credit move across markets. It teaches the general idea only and says nothing about any company in this story.
Where Anthropic’s Ratings Stand
Anthropic already has one rating. Benzinga reports that Kroll Bond Rating Agency assigned it a BB+ issuer rating in June, one notch below investment grade, in connection with a $35 billion chip-financing arrangement. Benzinga notes that this differs from a future public rating by Moody’s, S&P or Fitch.
If BB+ is one notch below investment grade, BB is two notches below it, by our arithmetic. Benzinga describes Blackstone’s expectation only as a high speculative-grade rating; our 30 October report, based on summaries of the Financial Times article, put it in the double-B range. Gundlach’s post goes further: it treats any investment-grade rating for Anthropic as one no agency should give.
As we read the S-1, the rating is not only a question of borrowing cost: it decides whether Anthropic’s $15 billion revolver stays secured by substantially all of its assets, and after release the fees and interest margin move with its ratings.
As we read Benzinga’s report, the question has narrowed to the gap between Kroll’s BB+, one notch below investment grade, and a first rating from Moody’s, S&P or Fitch, which none of the sources we read shows yet.
Anthropic, Form S-1 filed with the SEC on 26 October 2026
“all guarantees and security interests securing the obligations under the A&R Credit Facility will be released, discharged, and terminated”
Three Implications
FOR ANTHROPIC’S LENDERS The S-1 says the $15 billion facility is guaranteed by certain material subsidiaries and secured by substantially all of Anthropic’s assets until the rating condition is met and Anthropic elects a release.
FOR RATING AGENCIES Gundlach wrote that any agency that might give Anthropic an investment-grade rating should be investigated or shut down; the S-1 names Moody’s, S&P and Fitch as the three agencies that count for the facility.
FOR BOND INVESTORS Benzinga reports that an investment-grade rating from Moody’s, S&P or Fitch could open the door to more pension and insurance capital.
The framework reads: “The $1T capex cycle is being underwritten by a $1T concentrated demand commitment from two counterparties whose combined free cash flow is deeply negative.”
As we read it, credit ratings are where that question gets priced: Gundlach’s post and the S-1’s rating trigger both turn on whether Anthropic’s debt is seen as investment grade. The framework is the owner’s argument and does not discuss Gundlach’s post.
Moody’s, S&P and Fitch have not published ratings for Anthropic in any source we read. Anthropic has not said publicly which rating it expects, and we found no response from the company to Gundlach’s post. Gundlach did not say whether DoubleLine holds or would buy Anthropic debt.
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Gundlach called an investment-grade rating for Anthropic “simply absurd.” Anthropic’s S-1 shows that the same rating, from two of the three big agencies, is what would free its $15 billion revolver from guarantees and collateral. Kroll already rates it BB+, one notch short.
A note on sourcing. Gundlach’s words are from his post on X on 2 November 2026. The credit-facility terms come from Anthropic’s Form S-1 filed on 26 October. The Kroll rating and Blackstone’s expectation are as reported by Benzinga. The notch count is our arithmetic.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
