Client's Portfolio Analysis

We provide quick and affordable portfolio analysis services for (re)insurance and retrocession portfolios in the, including pre-analysis exposure services and post-analysis loss reporting and presentation.

Many insurance and almost all reinsurance companies rely on catastrophe models to assess and manage catastrophe risks. However, due to limited resources available to some companies, direct access to such models may not be feasible for all companies particularly many primary insurance companies. CATRisk® provides consulting services in the form of portfolio analyses on client-specific exposure using our Cat Risk Models.
Such consulting services include the following steps based on the data quality and desired scopes specified by our clients:


  • Cleansing and reformatting of client’s data to prepare an OED (Open Exposure Data) file.
  • Geographical disaggregation of client’s aggregate data using CATRisk Disaggregation module SIMORQ.
  • Assignment of country-specific vulnerability functions by line of business, coverage and building characteristics.
  • Estimation of probabilistic site hazard based on simulation of a wide range of probabilistic earthquakes hypothesized by the seismic model.


  • Probabilistic earthquake losses assessment using high resolution model on Facultative and Treaty portfolios and financial analyses to derive Ground Up Loss and Gross Loss statistics such as Annual Aggregate EP (AEP), Occurrence EP (OEP), Annual Average Loss (AAL), Event Loss Table (ELT) and Year Loss Table (YLT) and at various detail or aggregation and insurance or reinsurance levels.
  • Our service includes a technical report describing client’s portfolio and additional enhancement made through cleansing and reformatting and also technical and regional characteristics of earthquake loss modelling. It also includes all assumptions made to fill the gap or enhance exposure data and further graphics and maps illustrating exposure and loss distributions.

Ground Up Loss (GUL)

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Ground Up Loss (GUL) is the total amount of loss that a building may suffer as the results of a cat event and includes losses from zero to the maximum sum insured values covered by an insurance policy. No deductibles or limit are considered.

Gross Loss (GRL)

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Gross Loss (GRL) is the total amount of loss that an insurance company is liable to pay taking into account deductible and limit and includes losses in excess of deductible and less than the limit.

Exceedance Probability (EP)

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Exceedance Probability (EP) is one of the most commonly used metrics in catastrophe modeling. It is return period or probability that a certain loss value will be exceeded.

Aggregate Exceedance Probability (AEP)

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Aggregate Exceedance Probability (AEP) curve represents return periods or probabilities for aggregated losses from all events in each year being exceeded certain loss values. This could be represented for any single or group of risks. The AEP is used to help consider the total volume of catastrophe events in a year.

Occurrence Exceedance Probability (OEP)

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Occurrence Exceedance Probability, OEP curve represents return periods or probabilities for losses from the biggest event in each year being exceeded certain loss values. This could be represented for any single or group of risks. Sometimes actuaries will refer to an OEP curve as Probable Maximum Loss (PML) curve which are the same. We may see close OEP and AEP curves for Perils and Regions where likelihood of having more than one event in each given year is low.

Annual Average Loss (AAL)

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Average Annual Loss (AAL) represents the overall expected loss for all stochastic events is defined as the sum of the expected losses of each of the individual events in the stochastic event set divided by the time span of the event ser, e.g. 10,000 or 100,000 years.

Event Loss Table (ELT)

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Event Loss Table (ELT) is the basic results from any cat risk models which provides loss statistics (mean and standard deviation) for each stochastic event and for any grouping of risks such as single risk or any geographic or business aggregation of risks.

Year Loss Table (YLT)

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Year Loss Table (ELT) is the same as Event Loss Table (ELT) but with Year Number, similar to historical loss listing which makes it easy to calculate other annual-based loss statistics.

Open Exposure Data (OED)

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Open Exposure Data (OED) is a new exposure data format, designed with Oasis at its core and developed in collaboration with the industry to ensure a robust and documented exposure framework for Oasis based platforms and models and to allow to take full advantage of the capabilities of the Oasis financial module. OED with its fully open and independent format also allows model vendors to unify around one exposure format, creating a standardization that is needed in the industry. For more information please click here.