Steering through the soft cycle: credit as the portfolio’s shock absorber

Diversification is easy to put on a slide and hard to put to work. In a softening property market, credit is where a reinsurance portfolio can actually earn it.

In The quiet hedge I argued that credit and surety losses run on a different clock from property catastrophe. They come from the economic cycle, not the weather, so the two books are close to uncorrelated in the scenarios that matter most for property. This piece is about what a portfolio steerer should do with that fact.

The soft cycle problem

When property rates soften, capital that arrived after the last big event keeps chasing margin, and the property book’s return per unit of capital falls. The easy response is to keep writing to plan. The disciplined response is to ask where the next pound of capital earns most.

Why credit earns more than it appears to

Judged alone, a credit layer can look ordinary. Judged inside the portfolio, it looks very different. Because its losses rarely coincide with a catastrophe year, it adds far less to the 1-in-200 loss than its standalone volatility implies. Allocate capital by marginal contribution, for example Euler allocation on TVaR, and credit’s capital charge falls while its return on allocated capital rises. In a soft property market, that can make credit the best risk-adjusted use of capacity in the book.

How to steer with it

Measure diversification, don’t assume it. Re-run the portfolio model with credit added at the margin and read off the change in tail capital.

Steer on marginal return on capital, not on line-of-business plans set before the cycle turned.

Use conditional correlation, not the average. Credit and property barely move together in a catastrophe year. Credit with itself moves together violently in a recession.

Watch the credit cycle directly. Bank lending standards, insolvency trends and sector stress tell you when credit’s own tail is getting heavier. I wrote about the best of those signals in Ask the loan officers.

The tail you must respect

Credit has its own systemic mode. In a financial crisis, credit losses cluster across sectors and countries at once, and the diversification benefit shrinks exactly when you need it. A portfolio that piled into credit because property was soft can find itself concentrated in the one risk the cycle is about to test. The answer is not to avoid credit, but to size it against a recession scenario in the capital model.

Portfolio steering is less about picking the best line than about knowing which risks don’t fail together. Credit and property mostly don’t. In a soft market that is worth real capital, provided you price for the year when they do.

Banu Munnangi is SVP, Credit Reinsurance AI at Marsh Re, where he leads data and AI for the Credit, Bond and Political Risk specialty. More writing · Expertise

Views are my own and do not represent my employer. Examples use illustrative figures, not client or employer data.