NAIC's $1.2 trillion private credit review prices Bermuda's $1.52 trillion ceded book

The National Association of Insurance Commissioners has attached a number to its private credit review: $1.2 trillion. The Bermuda long-term reinsurance market has a number of its own: $1.52 trillion. What connects them is the way the NAIC's ratings and valuation reviews set what private credit costs to hold on ceded books, and the fact that 82 per cent of that ceded business originates with US insurers. The result is that the first visible cost of the NAIC's private credit letter lands on American cedents because they supply the overwhelming share of the book.

The letter prices private credit rather than banning it. Ratings and valuation reviews are the mechanism: when a Bermuda reinsurer holds private credit against the reserves backing ceded US risk, the NAIC's review determines the capital charge that asset must carry. That charge is then passed through to the cedent in the cost of the reinsurance contract. A review of this kind is a tariff on an asset class, and a tariff is priced into the transaction before any broader regulatory change arrives. That is the near-term story.

The arithmetic is straightforward. Bermuda's long-term reinsurance book stands at $1.52 trillion. US cedents supply 82 per cent, which works out to roughly $1.25 trillion of ceded business. Japan supplies 11 per cent, or about $167 billion. The remaining 7 per cent accounts for the rest, roughly $106 billion. The NAIC's private credit letter is $1.2 trillion. Set side by side, that figure is just under the whole US ceded slice. The review is not a narrow probe; its stated scope nearly matches the entire flow of American business into the Bermuda market.

That near one-to-one match matters more than it might first appear. Private credit is not the whole book, and the letter's $1.2 trillion is not a measure of how much private credit actually sits on Bermuda balance sheets. But the review's size means it can reach almost every dollar of US ceded reserves if private credit is part of the collateral. The letter does not say it was sized for Bermuda, and the data does not prove intent. What the numbers show is convergence: the review's scale is essentially the scale of the US ceded piece.

Because 82 per cent of the book is American, any cost the review assigns is disproportionately American. The US is the largest source of ceded business and the source that defines the book's centre of gravity. Japan's 11 per cent is the second-largest slice, but it is less than one-seventh the size of the US share. A reinsurer that has to reprice private credit across its book will feel the pressure first where the exposure is deepest, and the exposure is deepest in the US-sourced reserves. That is a structural fact of the market, not a policy choice.

The valuation review operates before any broader charge, and it operates through channels that already exist. Reinsurers already submit ratings and valuations to supervisors. The NAIC's letter alters how private credit is treated within those existing reviews, which means the repricing begins now rather than waiting for a new rule to be fully implemented. For a US cedent, the practical consequence is that the cost of reinsurance capacity can change before the cedent signs the next treaty. The review is the first visible cost because it is the first mechanism that touches the asset class inside the ceded book.

The distinction between a cost and a prohibition is worth keeping clear. A prohibition would force reinsurers to sell assets or decline certain collateral. A valuation review attaches a capital charge that the market can pass through, negotiate, or avoid by changing the asset mix. The letter therefore works as a pricing signal, not a wall. The industry's attention is on the review itself because the review is the thing that changes prices today.

The denominator for the entire conversation is $1.52 trillion. Every percentage point of US share represents about $15.2 billion of ceded business. At 82 per cent, the US contribution is a little under $1.25 trillion. Every percentage point of Japanese share represents the same $15.2 billion denominator, so Japan's 11 per cent is about $167 billion. The letter's $1.2 trillion scope therefore exceeds the entire Japanese and residual share combined, which is roughly $273 billion. The point is simpler: the letter's size means it cannot avoid the US share.

The NAIC could not write a $1.2 trillion private credit review that missed the US ceded book, because the US ceded book is $1.25 trillion of a $1.52 trillion total. Any review that size will, by arithmetic, land on American cedents first. Japan's 11 per cent will feel it second, and the remaining 7 per cent after that. The order follows weight, not regulatory priority.

The 82 per cent figure is the one to watch as the review moves through its first cycle. If US cedents continue to supply that share, every dollar of private credit priced by the letter will be priced against a book dominated by American risk. The cost has already begun where the concentration is highest. Bermuda's $1.52 trillion book is the venue; the US provides the bulk of the business; and the NAIC's letter has just written a price tag.