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🏢 '''Property risk sub-module''' is a component of the [[Definition:Solvency II | Solvency II]] [[Definition:Standard formula | standard formula]] that calculates the capital charge an insurer must hold against the risk of loss arising from fluctuations in the level or volatility of property prices. Sitting within the broader [[Definition:Market risk module | market risk module]], this sub-module addresses an insurer's exposure to real estate investments — whether held directly, through funds, or via mortgage-related instruments. While the concept of quantifying property-related investment risk exists across regulatory regimes, the specific sub-module structure is a hallmark of the Solvency II framework applied across the European Economic Area.

⚙️ The calculation applies a prescribed stress scenario — typically an instantaneous decline in property values of a defined percentage — to the insurer's net exposure to property assets. Under the Solvency II standard formula, the stress is a 25% fall in real estate values, and the resulting impact on the insurer's [[Definition:Basic own funds | basic own funds]] determines the [[Definition:Solvency capital requirement (SCR) | solvency capital requirement]] attributable to property risk. Insurers that use an [[Definition:Internal model | internal model]] approved by their [[Definition:Supervisory authority | supervisory authority]] may calibrate the stress differently, reflecting their own portfolio characteristics and historical data. The sub-module interacts with other market risk sub-modules — such as those for [[Definition:Interest rate risk sub-module | interest rate risk]], [[Definition:Equity risk sub-module | equity risk]], and [[Definition:Spread risk sub-module | spread risk]] — through a [[Definition:Correlation matrix | correlation matrix]] that accounts for diversification benefits when aggregating capital charges.

📊 For insurers with significant [[Definition:Investment portfolio | investment portfolios]] allocated to commercial or residential property, the property risk sub-module can be a material driver of overall capital requirements. Life insurers in markets like Germany and the United Kingdom, which have historically held substantial real estate holdings to back long-duration [[Definition:Liability | liabilities]], pay particular attention to this charge when making [[Definition:Asset allocation | asset allocation]] decisions. The sub-module thus shapes investment strategy as much as it measures risk — an insurer contemplating a shift toward property assets must weigh the expected return against the incremental capital cost. Comparable frameworks outside Europe, such as China's [[Definition:C-ROSS | C-ROSS]] regime, incorporate analogous property stress tests within their own market risk calculations, though the calibration and methodology differ.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Market risk module]]
* [[Definition:Solvency capital requirement (SCR)]]
* [[Definition:Equity risk sub-module]]
* [[Definition:Standard formula]]
* [[Definition:Internal model]]
* [[Definition:Solvency II]]
{{Div col end}}

Definition:Property risk sub-module - Revision history

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