The Cayman Islands' Reinsurance Boom

In recent years, U.S. life insurers have increasingly ceded liabilities to affiliated reinsurers domiciled offshore. Reinsurance is a longstanding and valuable part of the insurance ecosystem, helping insurers diversify risk, expand capacity, and ultimately benefit policyholders.

But when these arrangements migrate to jurisdictions with flexible capital standards and limited public transparency, they can create blind spots for regulators responsible for protecting U.S. policyholders.

Lessons From the Past

I have long been a strong advocate of the U.S. state-based system of insurance regulation.

I served as Connecticut's insurance commissioner and in that capacity regulated the largest life insurance industry in the U.S.

After the global financial crisis, as a member of the executive committees of both the National Association of Insurance Commissioners and the International Association of Insurance Supervisors, I worked with fellow global regulators to rebuild and modernize a framework that had been tested and strengthened.

One lesson from that period has remained with me: Regulatory frameworks must continually adapt to new and evolving sources of risk.

After the financial crisis of 2008, regulators strengthened enterprise risk oversight and group supervision with a clear objective: to prevent surprises rather than clean up after them.

That mindset remains essential today, particularly as markets reprice risk quickly, liquidity can dry up, and the structure of insurance balance sheets continues to grow more complex.

A New Concern

Today the state insurance regulatory system is well equipped to manage periods of market volatility such as the one we are currently experiencing.

But a new vulnerability is emerging, one that could complicate supervision if left unaddressed. The concern arises when insurers pursue offshore structures primarily to take advantage of regulatory differences among jurisdictions.

Put simply, a jurisdiction with comparatively opaque regulatory standards and limited public disclosure can quickly become an attractive destination for insurers seeking to expand their balance sheets under a different supervisory framework.

From a regulatory standpoint, that dynamic should prompt closer examination, particularly when liabilities tied to U.S. policyholders are involved.

The challenge arises when market volatility, structural complexity and reduced supervisory visibility converge, particularly when significant liabilities are supported through offshore affiliates. When those elements exist, relatively small vulnerabilities can become more difficult to detect, and harder to address once they surface.

This is why developments in jurisdictions such as Cayman deserve attention.

When liabilities tied to U.S. policyholders are ceded to offshore entities, especially affiliated reinsurers, supervisors should be able to answer a set of basic questions with clarity and confidence: What liabilities have been ceded? Under what contractual terms? What assets support those obligations? And how would those arrangements perform under stress?

If those answers are difficult to obtain or depend primarily on assurances rather than verifiable data, the supervisory framework risks falling short of the principles that guided many post-crisis reforms.

This is not to suggest ill intent; no regulator wants a crisis.

But the differences in approach, regulatory infrastructure, and transparency are cause for significant concern.

Credit analysts have also begun to highlight the issue. Moody's recently characterized the growth in U.S. life reinsurance activity in Cayman as a net credit negative, citing counterparty risk and comparatively limited transparency.

Regulators' Role

Assessments like Moody's should prompt scrutiny by regulators responsible for safeguarding U.S. policyholders.

U.S. state insurance regulators should move swiftly to ensure they have clear visibility into material offshore reinsurance exposures involving U.S. life insurers, particularly in less rigorous jurisdictions.

Doing so now, while markets remain functional, would allow supervisors to address emerging risks deliberately rather than react under pressure.

The lesson from past crises is not that markets should be constrained unnecessarily. Innovation and global capital flows are essential to a healthy insurance sector.

But effective supervision requires transparency and confidence that obligations to policyholders remain fully understood and appropriately supported.

Regulators should trust but also verify, especially when the most consequential risks to policyholders may reside beyond their immediate line of sight.

Thomas B. Leonardi is a former Connecticut insurance commissioner and a former member of the executive committees of the National Association of Insurance Commissioners and the International Association of Insurance Supervisors. He serves as an independent member of the boards of the Athene Co-Invest Reinsurance Affiliate Ltd. and of the Travelers Companies. The views expressed here are his own and not the views of any organization with which he is affiliated.