A story that was briefly the lead item in the Financial Times, Catastrophe bond sales hit record as insurers offload climate risks, is frustratingly short on key details, like the maturity of these catastrophe bands and how the risks are stipulated. The big selling points seem to be “really juicy yield” and some diversification compared to other bonds. But subprime debt and CDOs looks like a deal before the financial crisis until they weren’t.
What is particularly frustrating is that this article does not make some key issues clear, such as:
Unlike traditional corporate, sovereign, and real estate debt, there’s no good way to assess the risk, which means investors (save perhaps the few that have staffers with reinsurance chops) have no clue as to whether they are getting an adequate return. Reinsurance has some arcane issues, such as if certain events happen in too short a timeframe, they can blow through regular insurer catastrophe cover and lead them to hit up their reinsurance policies, which can be at risk of coming up short. This is the sort of event the reinsurance unit at Berkshire Hathaway dreams of, when insurers are not yet certain how certain events will be classified, are scrambling to buy extra “cat cover” for which Berkshire can then charge through the nose. In general, Berkshire seeks to write policies only in “hard markets” when pricing is very favorable, and otherwise sit on the sidelines. To my knowledge, pretty much no one else has the discipline to keep staff employed and doing nothing all day waiting for what often is only a few days every year or 18 months to write huge amounts of cover on lucrative terms.
The regular occurrence of large hurricane, wildfire, and earthquake events means that there is more risk of a total or large principal loss than in many other fixed income instruments.1
Credit spreads, as in what bond investors are typically paid for assuming risk, were at record low levels in late 2024, as even tighter than in the famed “wall of liquidity” period during the runup to the crisis. They have widened a bit since March 2025 but from what I can tell (not having access to a Bloomberg terminal) are still extraordinarily thin. It’s at times like this that investors are unduly tempted to pile into high risks, mistakenly thinking they can exit in good shape if needed.
In addition to reinsurers, and hence also presumably these bonds, writing risks to cover certain exposures and not others, my impression is the also regularly (always?) cover only certain limits, say $50 to $100 million of excess exposure.
And a query to the real experts: a colleague jokes that an insurance policy is simply the right to sue an insurer for payout. Those insurers are operating entities and hence all staffed up to dig in their heels. How well positioned are these bond investors to do so?
Twitter confirms that I am not alone in my skepticism:
Hedge Funds buying catastrophe bonds
ft. @macyagilliam pic.twitter.com/2yNBHFeQ0g
— Morning Brew ☕️ (@MorningBrew) January 22, 2024
Now to the high points of what the pink paper does say about these bonds:
Issuance of the instruments, which transfer part of the risk for events such as wildfires, hurricanes and earthquakes to bondholders, has surged to $18.1bn so far this year. That compares with the previous record of $17.7bn for the whole of 2024, according to specialist data provider Artemis.bm….
As disasters become more commonplace, insurers have had to pay out more than $100bn in natural catastrophe losses every year so far this decade, a number Swiss Re recently predicted could reach $300bn in a peak year…
An industry-wide Swiss Re index of total returns from catastrophe bonds has risen 14 per cent over the past year and by more than 50 per cent over the past five years.
Fitch in 2023 explained the sudden search for new chumps in Global Reinsurers Pull Back from Natural Catastrophe Cover:
Finally the Financial Times provides bit of information as to what these bonds are about:
Catastrophe bonds are a form of reinsurance, through which insurers or companies give investors regular payments to assume some of the risk from events such as extreme weather. If such a disaster occurs, bondholders can lose their money….
In a sign of the instrument’s widening appeal, the first exchange traded fund for catastrophe bonds launched on the New York Stock Exchange in April….
The steadily increasing cost of traditional reinsurance — partly due to extreme weather losses and rising asset prices — has also pushed insurers towards catastrophe bonds.
New investors in the sector range “from large institutional investors, to multi-strategy hedge funds, endowments and family offices”, said Steve Evans, editor-in-chief at Artemis.
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1 Another is commercial real estate development.
