In February 2026, war risk insurance premiums for ships transiting the Strait of Hormuz surged from 0.25% of hull value to as high as 10%, with some marine underwriters declining to write coverage at any price. By early March, at least five tankers had been damaged, two personnel killed, and roughly 150 ships stranded near the strait. Meanwhile, in the world of private credit, Blackstone allowed investors to redeem a record 7.9% of shares from its flagship private credit fund, while Apollo's share price dropped from $177 in December 2024 to $104. And in the background, S&P Global Ratings warned that the Middle East conflict could end a three-year cycle of net credit-rating upgrades across emerging markets.
For Bermuda's $1.52 trillion long-term re/insurance sector, these three developments are not isolated headlines. They represent converging risks that strike simultaneously at both sides of the balance sheet: underwriting exposure through marine war, political violence, and trade credit lines, and asset-side exposure through private credit allocations increasingly sensitive to emerging market deterioration and tightening financial conditions.
From tracking Bermuda's re/insurance filings and rating agency commentary over the past two years, this convergence stands out as the most significant stress test the island's market has faced since the post-pandemic hard market reset of 2023.
Understanding the "Bermuda Triangle" Strategy
Before examining the current pressures, it helps to understand why Bermuda sits at the epicenter. The term "Bermuda Triangle" has become industry shorthand for a three-cornered business model linking a large alternative asset manager, a U.S. life insurer that issues fixed-rate or fixed indexed annuities, and a Bermuda-based reinsurer. The asset manager acquires or partners with the life insurer. The insurer sells annuities to American retirees, generating a steady stream of investable premiums. Those premiums flow through funds-withheld or modified-coinsurance reinsurance structures to the Bermuda reinsurer, where the asset manager directs the capital into higher-yielding private credit.
According to the National Law Review, roughly half a dozen major firms run the "purest form" of this strategy, in which all three entities sit within the same holding company. Apollo and its insurance arm Athene pioneered the model starting in 2009. By the third quarter of 2025, Athene ranked first among 139 U.S. annuity providers with $27.7 billion in year-to-date sales. Other major players include KKR (via Global Atlantic), Blackstone (partnered with F&G Annuities & Life), and a wave of newer entrants such as Third Point, which established Malibu Life Re in the Cayman Islands.
The strategy's growth has been extraordinary. The FSOC's 2025 Annual Report noted that U.S. life insurers ceded $2.4 trillion of reserves to reinsurers in 2024, a 70% increase from $1.4 trillion in 2019. Reserves ceded to offshore jurisdictions more than doubled to over $1.1 trillion over the same period, with Bermuda receiving the lion's share. AM Best separately reported that private credit holdings of U.S. life/annuity insurers reached nearly $1.7 trillion, representing 44% of the industry's bond portfolio, up from about 27% in 2013.
Patterns we have seen in BMA filings confirm this trajectory from the Bermuda side. The BMA's December 2025 market analysis showed the long-term insurance sector's total assets rose 19.1% in 2024 to $1.52 trillion, with gross written premiums climbing 17.8% to $200.1 billion. Net income more than doubled to $26.3 billion. The median ratio of total assets to capital and surplus reached 8.9 times in 2024, up from 8.4 times the year before, a clear indicator of rising leverage.
The First Pressure: Strait of Hormuz and the Marine War Loss Shock
The U.S.-Israeli military strikes on Iran that began on February 28, 2026, under Operation Epic Fury, triggered one of the most severe disruptions to global shipping in modern history. Iran retaliated by effectively closing the Strait of Hormuz, through which roughly 20 million barrels of crude oil transit daily, representing about 20% of global seaborne oil trade.
The insurance market response was immediate and dramatic. All 12 members of the International Group of P&I Clubs, which collectively cover 90% of the world's ocean-going tonnage, issued cancellation notices for war risk coverage in the Gulf region. Before the conflict, hull war risk premiums for the strait ran at roughly 0.25% of a ship's value. Within days, quotes ranged from 1% to 10% of hull value for a seven-day policy, according to industry brokers at McGill & Partners and Ambrey. For a very large crude carrier (VLCC) worth approximately $100 million, that translates to potential single-transit costs of several million dollars, up from roughly $250,000 before the conflict.
The Lloyd's Market Association estimated approximately 1,000 vessels, mostly oil and gas tankers, were in the Persian Gulf region at the onset of the crisis, carrying total hull value exceeding $25 billion. Most of this fleet was insured through the London market, with Bermuda reinsurers providing significant retrocession capacity.
Brent crude surpassed $100 per barrel on March 8, 2026, for the first time in four years, eventually peaking at $126 per barrel. VLCC charter rates hit an all-time record of $423,736 per day on March 3, quadrupling within a single week, before rising further to nearly $800,000 per day.
For Bermuda-based specialty reinsurers, the direct exposure comes through multiple lines simultaneously. Marine hull war risk, cargo, P&I excess layers, and political violence/terrorism covers all face potential claims. This is not hypothetical: at least nine tankers have been damaged in the conflict, port infrastructure in Oman has been struck, and the Lloyd's Joint War Committee expanded its designated war zone via circular JWLA-033.
This Gulf crisis layers on top of ongoing losses from the Ukraine conflict. By mid-2025, Ukraine's documented war losses had reached approximately $176 billion. Black Sea war risk insurance premiums soared 250% after a series of ship attacks in late 2025. Bermuda reinsurers, which dominate specialty lines including marine war and political violence, sit net on many of these exposures.
The Second Pressure: Private Credit Stress and the Balance Sheet
While underwriting losses mount on one side, the asset side of Bermuda reinsurers' balance sheets faces its own reckoning. The private credit that was supposed to be an "uncorrelated" source of higher yields is showing vulnerability to the same macro headwinds driving underwriting losses.
In February 2026, Blackstone allowed a record 7.9% share redemption from its flagship private credit fund, which Bloomberg characterized as one of several signs of spreading unease in private credit markets. Blue Owl Capital, whose Kuvare Asset Management subsidiary provides investment services to Bermuda-connected life insurers, saw its stock fall 9% in a single day after reporting withdrawal spikes. Apollo's stock declined from $177 to $104 between December 2024 and early March 2026, and KKR dropped from $165 to $90 over a similar period.
These are not peripheral players. These are the asset managers at the core of the Bermuda Triangle strategy, managing tens of billions in assets that back annuity policyholder obligations. The 777 Re case serves as a cautionary tale: the Bermuda Monetary Authority revoked the reinsurer's license in October 2024 after finding it had invested excessively in affiliated assets, suffered from inadequate governance, and had not received sufficient capital contributions from parent company 777 Partners. Utah's insurance commissioner subsequently sought court intervention for three affiliated insurers.
From tracking the broader asset allocation data, the vulnerability is structural. The BMA's own reporting shows that investments in equities, equity-like assets, preferred stock, and mortgage loans rose to 21.4% of investment allocations across the long-term sector. While 56% of assets remain in highly liquid instruments, the concentration in private credit, collateralized loan obligations (CLOs), and direct lending creates mark-to-model valuation uncertainty. The FSOC has specifically flagged this concern, noting that these assets "carry uncertainty as their value depends on mark-to-model accounting as opposed to mark-to-market measures."
The illiquidity dimension is critical for actuarial analysis. In a rising-default environment, these assets cannot be quickly rotated out of portfolios. As Moody's noted in its 2024 sector report, the Bermuda regulatory regime "tends to allow for a higher discount rate than other jurisdictions," which directly impacts the level of liabilities and therefore an insurer's available capital. The BMA's prudent person principle consultation, which took effect in July 2025, now requires insurers to conduct liquidity stress testing of complex assets and set investment limits based on those tests. But the real question is whether those tests adequately captured the scenario now unfolding.
The Third Pressure: S&P's Emerging Market Downgrade Warning
The third force tightening the squeeze arrived in late March 2026 when S&P Global Ratings Director Ravi Bhatia warned that the Middle East conflict risked ending a multi-year cycle of net credit-rating upgrades across emerging markets. "In 2026, given the new conflict in the Middle East, inflationary pressures are expected to rise, and financing conditions will become more challenging for the MEA region, raising potential downside risks," Bhatia stated.
This matters directly for Bermuda reinsurers' private credit books. CLO portfolios, direct lending facilities, and structured credit instruments often carry meaningful exposure to emerging market borrowers or EM-sensitive sectors. An energy price shock of the magnitude now underway ripples through EM economies in multiple ways: commodity-importing nations face balance-of-payments pressure, inflation expectations reset upward, central banks tighten, and corporate credit quality deteriorates.
The reversal is striking. EM sovereign dollar bonds had returned approximately 52% between October 2022 and February 2026, driven by post-pandemic fiscal reforms, resolved defaults, and compressed risk spreads. S&P's baseline global growth forecast of 3.2% for 2026 assumed EM resilience would continue. The Strait of Hormuz crisis has upended that assumption, at least for energy-importing emerging economies and for global sectors dependent on stable shipping.
For actuarial reserving purposes, the correlation structure is the key concern. Traditional actuarial models often treat investment risk and underwriting risk as largely independent. But in the current scenario, the same geopolitical event is simultaneously increasing underwriting losses (through marine, political violence, and trade credit claims), degrading asset quality (through EM credit deterioration and private credit stress), raising inflation (through energy and shipping cost shocks), and tightening liquidity (through higher interest rates and reduced market access). This is the kind of tail correlation that makes a mockery of diversification assumptions built on benign historical data.
The Regulatory Tightening: BMA, NAIC, and IAIS Responses
Regulators have not been passive observers. The BMA conducted a Global Financial Crisis stress test for long-term commercial insurers in 2024, concluding that the sector demonstrated "strong ability to withstand severe economic challenges" and that "most insurers maintain capital levels well above regulatory requirements, even under severe stress conditions." The median Liquidity Coverage Ratio under stress was reported at 471%, significantly above the 105% regulatory minimum.
However, regulators are simultaneously tightening the framework in ways that could constrain the Bermuda Triangle model going forward. Key developments include the BMA's prudent person principle, effective July 2025, which requires prior approval for affiliated asset investments, mandates that derivatives be used only for risk management (not speculation), and demands liquidity stress testing for complex assets. The BMA also proposed strengthened public disclosure requirements in December 2024, including granular asset holdings, product-level reserves with duration data, and asset-liability management strategy disclosure.
On the U.S. side, the NAIC's Life Actuarial Task Force continues developing guidelines for evaluating offshore reinsurance, with concerns that domestic insurers could use reinsurance to "significantly lower required asset levels and free up capital, potentially impacting policyholders negatively." The FSOC's 2025 Annual Report explicitly identified offshore reinsurance concentration as a risk to financial stability and advocated for enhanced disclosure requirements.
Internationally, the IAIS launched a draft consultation analyzing structural shifts in the life insurance sector toward alternative assets and asset-intensive reinsurance. Bermuda Internationally Active Insurance Groups became subject to the International Capital Standard (ICS) starting January 2025, establishing a harmonized global method for measuring capital requirements.
From a practical standpoint, these regulatory developments mean that Bermuda reinsurers face not just market pressure but regulatory pressure to hold more capital, disclose more information, and justify their investment strategies at precisely the moment when geopolitical stress is making those strategies more vulnerable.
Financial Performance Under Pressure: What the Numbers Show
The financial picture entering this period of stress was, on the surface, strong. Fitch expected Bermuda re/insurers to post a return on equity near 17% for 2025, down only slightly from 17.8% in 2024, with shareholders' equity growing 12% in the first nine months. RenaissanceRe reported a 25.9% return on average common equity for full year 2025, more than doubling its book value over a three-year stretch. SiriusPoint delivered a 22.1% ROE, its best since formation.
But the cracks are visible. Bermuda re/insurers ended 2025 with a combined ratio of 92%, up from 90.7% in 2024, with the January 2025 California wildfires adding roughly eight percentage points. Conduit Re posted just an 11.1% ROE after wildfires pushed its full-year combined ratio above 100%. Everest Group's insurance segment reported a 114.6% combined ratio for 2025.
More fundamentally, the market was already softening before the Gulf crisis erupted. Global reinsurance capital hit a record $785 billion in early 2026 according to Aon, with alternative capital rising to $136 billion. Aon's April 2026 renewal report documented "double-digit reductions and more flexible terms and conditions." This is classic late-cycle behavior: abundant capital chases returns, discipline erodes, and then a major loss event arrives when the industry is least prepared to absorb it.
The Strait of Hormuz crisis introduces a new variable. While Bermuda's P&C reinsurers came into 2026 with strong capital positions, the simultaneous stress on marine war, political violence, trade credit, and energy sector exposures could produce cross-class correlation that standard capital models may not fully capture. Guy Carpenter had forecast that reinsurers would "comfortably exceed their cost of equity for the third year in a row," but that projection assumed a different geopolitical baseline.
Actuarial Implications: Reserve Adequacy, Correlation, and Tail Risk
For actuaries working with Bermuda-domiciled or Bermuda-exposed entities, several technical considerations demand attention:
Reserve correlation assumptions. The simultaneous stress on underwriting and investment portfolios means that traditional correlation matrices may understate joint tail risk. Actuarial standards of practice governing loss reserves (ASOP No. 43) and asset adequacy testing require consideration of "reasonably possible" adverse scenarios. The current environment, where a single geopolitical trigger drives losses across marine, political violence, trade credit, and structured credit simultaneously, qualifies as a scenario that must be explicitly modeled rather than dismissed as an extreme outlier.
Private credit valuation lag. Mark-to-model assets, by definition, carry valuation lags relative to observable market prices. In a stress scenario, the "true" market value of these assets may deteriorate faster than the model-based marks acknowledge. Actuaries performing cash-flow testing under the BMA's Scenario-Based Approach or the NAIC's asset adequacy framework should consider stress assumptions that reflect a sudden liquidity event where forced sales of private credit assets would realize significant haircuts.
Reinsurance recoverability. As offshore reinsurance concentrations grow, the recoverability of ceded reserves becomes a critical assumption. The 777 Re collapse demonstrated that counterparty risk is not theoretical. Actuaries valuing ceded reserves should evaluate the investment quality and liquidity position of Bermuda-based counterparties, particularly those with significant private credit allocations.
Marine war loss development. The Strait of Hormuz crisis is ongoing, and ultimate losses remain highly uncertain. Loss development patterns for marine war risks do not follow standard casualty development curves. Actuaries should consider that many vessel and cargo claims may not be reported for months, that salvage and recovery operations in active conflict zones face extraordinary delays, and that subrogation against state actors is effectively impossible.
Inflation assumptions. Brent crude reaching $126 per barrel and VLCC rates hitting $800,000 per day signal a significant energy-driven inflation impulse. For reserving actuaries, this means reconsideration of inflation assumptions embedded in long-tail casualty reserves, as well as the inflation sensitivity of annuity portfolios that underpin the Bermuda Triangle's liability stack.
What Comes Next: Consolidation, Repricing, or Something Worse
The most likely near-term outcome is a period of accelerated consolidation and selective repricing. EY's March 2026 outlook highlighted that excess capital was already driving expectations for increased M&A activity among Bermuda reinsurers. A market stress event would intensify that dynamic, with better-capitalized players acquiring entities whose private credit portfolios or underwriting losses impair their standalone viability.
Fitch and Aon both noted that the soft reinsurance pricing environment was unlikely to persist if a major loss event materialized. The Strait of Hormuz crisis, combined with the California wildfires and ongoing Ukraine conflict losses, could serve as the catalyst for market hardening that many had anticipated but could not time. Specialty lines (marine war, political violence, trade credit, aviation war risk) are already seeing dramatic repricing; the question is whether this extends into broader property-casualty reinsurance and, critically, into the terms of life and annuity reinsurance transactions.
The worst-case scenario, which regulators have been trying to prevent, involves a credit stress event that forces a PE-backed Bermuda reinsurer into a liquidity crisis. If private credit defaults spike, mark-to-model assets face sudden write-downs, and policyholders or cedants attempt to recapture assets, the illiquidity that once generated yield becomes a trap. The 777 Re situation involved a single mid-sized player. A similar event at a firm with tens or hundreds of billions in assets under management would have systemic implications for U.S. retirement savings.
Bermuda's market is not defenseless. The BMA's stress testing suggests capital buffers remain above regulatory minimums. The long-term sector's 56% allocation to highly liquid instruments provides a meaningful cushion. And the regulatory tightening now underway, including ICS compliance, strengthened disclosure, and the prudent person principle, is designed precisely to prevent the worst outcomes.
But as the IMF's Global Financial Stability Note on private equity and life insurers observed, PE-influenced Bermuda reinsurers account for roughly half of all long-term reinsurance assets on the island. Their asset allocation is structurally skewed toward illiquid investments. And the BMA itself has acknowledged that PE insurers holding illiquid assets "are more likely to be forced sellers of such assets at potentially steep discounts to meet liquidity needs."
The Bermuda Triangle strategy was built for a world of low rates, stable geopolitics, and liquid credit markets. It is now being tested by a world of active military conflict, surging energy prices, and private credit fund redemptions. The actuarial profession's role in this moment is clear: to ensure that reserve adequacy, counterparty risk, and correlation assumptions reflect the world as it actually is, not as the models assumed it would remain.