Loss Ratio | The Capital View

In the last two editions, we improved how loss ratios are understood - first by testing whether they are credible, and then by identifying what is driving them.

It provided a clearer view of internal performance.  But capital is not assessing internal performance.

Capital providers are asking what risk they are backing - and whether it justifies the capital.

The way most portfolios are presented does not answer that question.

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The Decision Question

Is the portfolio attractive to capital; given the level of risk it carries?

Up to this point, the focus has been internal:

• Is the loss ratio credible?

• What is driving the movement?

Capital providers - whether at Lloyd’s or in reinsurance markets - are not only assessing whether performance is improving or deteriorating.

They are assessing:

• How much risk is being taken

• How that risk is distributed across the portfolio

• Whether the return justifies the capital required

A portfolio can show an improving loss ratio and still be unattractive to capital.

The decision becomes: “Is this a portfolio worth backing?”

It is a different way of judging the portfolio as opposed to simply a different view.

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Default Practice

At this stage, most renewal packs present a collection of views:

·         Loss ratio trends (often enhanced with exposure - Edition 5)

·         Frequency and severity breakdowns (Edition 6)

·         Occasionally a net view alongside gross

Even with better charts, this core question remains unanswered:

What is the overall risk-return profile of the portfolio?

Specifically:

• Scale is disconnected from risk

  Large and small segments are viewed equally unless the reader actively reconciles them

• Volatility is buried inside the detail

  It appears in severity charts or large loss commentary, but is not visible at portfolio level

• No prioritisation emerges

  The pack informs but does not guide where capital should flow

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Suggested Improvement

The Portfolio Risk Map brings these components together into a single decision view.

Each segment (LOB / product / cohort) is shown as a single point:

X-axis:	Expected Loss Ratio after removing noise	→  Shows performance
Y-axis:	Volatility (proxy for sensitivity to large losses), measured here as variation in loss ratios over time.	→  Shows capital risk
Bubble size:	Earned Premium	→  Shows materiality

Reference lines are added to distinguish acceptable performance (target loss ratio) and acceptable volatility (portfolio-defined threshold).

What this makes visible:

This is the first point in the analysis where performance, scale, and risk are visible together.

1. Scale-adjusted risk	Large, volatile segments become immediately visible. Small, extreme segments lose their ability to distort the narrative.
2. True risk-return trade-offs	Segments with similar loss ratios separate clearly: stable vs volatile structural vs incidental deterioration
3. Capital allocation signal	The chart answers: Where should capital grow? Where should it be constrained? Where is pricing insufficient for the risk taken?

Trade-offs:

This chart introduces a different type of complexity:

• Requires a defined volatility proxy

• Less familiar than time-series views

• Needs explanation the first time it is used

But that is the point.  It replaces multiple partial views with a single decision-ready view.

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Decision Boundary

Use this when….	Don’t use this when…
Preparing for renewal / capacity discussions Portfolio mix is heterogeneous Capital allocation or growth decisions are being made You need to prioritise where attention should go	Portfolio is small or homogeneous The question is purely performance vs target The audience requires only a high-level summary

This view shows the risk the portfolio generates - and how capital is likely to assess it. However, reinsurance reshapes the retained loss distribution, often significantly.

In the next edition, we look at how the reinsurance structure changes what we keep.