canonical/modules/M090-property-and-casualty-insurance-analyst-playbook.md

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<!-- Module: 090 | Title: Property and Casualty Insurance Analyst Playbook -->

## PART XV - SECTOR PLAYBOOKS | MODULE 090

# Property and Casualty Insurance Analyst Playbook

> Mission. Build a sector-specific research system for Property and Casualty Insurance that converts operating data into financial outcomes, highlights the accounting areas most likely to distort comparability, and selects valuation methods that reflect the sector's economics.

## Economic engine and binding constraints

Model premiums, rate, exposure units, retention, loss ratio, catastrophe load, reserve development, expense ratio, reinsurance, investment income, and capital. Separate accident-year profitability from reserve releases.

## Primary KPI stack

| KPI | Construction / analyst control |
| --- | --- |
| premium growth | premium growth = current period / comparable prior period - 1; decompose organic, price, volume, mix, FX, and M&A where material. |
| rate | Cap rate = stabilized NOI / property value |
| retention | NRR = beginning-cohort recurring revenue after churn, contraction, and expansion / beginning-cohort recurring revenue |
| loss ratio | Loss ratio = incurred losses and loss-adjustment expense / earned premium |
| expense ratio | Insurance underwriting expenses divided by net premiums earned; for funds/asset products, operating expenses divided by average assets as context requires. Validation: Recalculate from same-scope numerator and denominator; confirm period, units, cohort/geography, and issuer definition; reconcile material differences to filings or operating data. |
| combined ratio | Combined ratio = loss ratio + expense ratio |
| reserve development | Change in prior accident-year loss reserves recognized in the current period, expressed in dollars and as a % of opening reserves/premiums. Validation: Recalculate independently from cited source data; verify definition, period, units, scope, signs, and any reconciliation to reported financial or operating totals. |
| investment yield | investment yield = annualized economic output / current market value or invested base; match numerator and denominator. |



## Sector-specific accounting and comparability traps

- Loss reserves: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs.

- Catastrophe estimates: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs.

- Reinsurance: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs.

- Dac: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs.

- Fair-value portfolio marks: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs.

## Valuation frameworks

- P/B versus ROE: price-to-book or price-to-tangible-book interpreted against sustainable ROE/ROTCE, growth, payout, risk, and cost of equity rather than as a standalone multiple.

- Normalized P/E: equity value divided by through-cycle diluted EPS after normalizing credit, reserves, margins, taxes, unusual gains/losses, and share count.

- Sum-of-the-parts: value each economically distinct segment with its appropriate framework, then subtract corporate costs and all non-common claims before deriving equity value.

## Sector diligence questions

- What is the most important leading indicator for Property and Casualty Insurance, and how many months does it lead reported revenue or cash flow?

## Sector stress and falsification

- Stress premium growth and rate together in the direction most likely to break the equity story; flow the result through working capital, capex, liquidity, financing, dilution, and valuation.

- Explicitly test loss reserves. Determine whether it can make the reported sector comparison look better or worse without equivalent economic change.

## 99-point standalone execution extension

### Model architecture and forecast chain

Model premiums, exposure units, rate, retention, loss ratio, expense ratio, catastrophe load, reserve development, reinsurance, float, and investment income.

### Leading-indicator dashboard

Track rate filings, claims inflation, catastrophe events, renewal retention, reinsurance pricing, reserve development, and bond yields.

### Primary-source map

SEC filings; statutory statements and NAIC data; state insurance-department rate filings; catastrophe-model/event data from public agencies; reinsurance disclosures; bond portfolio and rate data.

### Accounting normalization test

Loss reserves, reinsurance recoverables, catastrophe accounting, prior-year development, and investment marks dominate quality.

### Valuation implementation

Use P/B or P/TBV relative to normalized ROE, underwriting-cycle earnings, and excess capital.

### Worked numerical mini-case

> Illustrative combined-ratio case.

Net earned premium is $5.0bn. A 94% combined ratio produces $300m underwriting profit. If catastrophe and reserve development push the ratio to 100%, underwriting profit falls to zero before investment income.

Separate accident-year loss ratio from prior-year reserve releases, then evaluate rate versus loss-cost trend and capital/reinsurance capacity.

### Monitoring and falsification cadence

Breaks include adverse reserve development, social inflation outrunning pricing, reinsurance unavailable, catastrophe concentration, or capital erosion.

At every quarterly update, rebuild the driver bridge from operating units to revenue, margin, cash flow and valuation; compare leading indicators with the prior forecast; record definition changes; and precommit the threshold that would trigger a thesis reset rather than a cosmetic estimate change.

## Sector exit standard

The Property and Casualty Insurance work is complete only when the analyst can explain the business in its native operating units, reproduce the KPI history, identify the binding growth constraint and marginal price setter, normalize sector-specific accounting, quantify a coherent adverse case, and translate the current market price into the operating expectations that must be met or exceeded.