CAS Practice Exam 2026 – Complete Study Guide

The probable maximum loss (PML) reflects an estimate of the largest loss that could be sustained from a particular risk or event, and coinsurance is a method of distributing financial risk among multiple insurers based on predetermined terms. When dividing the PML by a coinsurance basis, the resulting ratio is a reflection of the relationship between the calculated risk and the coverage limits agreed upon in the insurance contract.

In certain scenarios, particularly during a severe loss event or catastrophic conditions, the calculated PML may involve factors that can lead to a temporary increase in the value attributed to the underlying property or risk. For example, during an extensive disaster that significantly impacts market conditions or property evaluations (such as inflation or a drastic increase in demand), the overall loss can exceed the initial valuation, leading to a situation where the PML divided by the coinsurance basis could surpass 100 percent. This illustrates the dynamic nature of risk assessment, where fluctuating market conditions and severe incidents can alter previously established values.

This reasoning reinforces the notion that catastrophic events can indeed lead to substantial shifts in potential losses relative to coverage. Thus, while a typical interpretation may suggest that this ratio should not exceed 100 percent, exceptions based on circumstances surrounding extreme or prolonged loss situations affirm that it is indeed