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📋 '''Currency risk sub-module''' is a component of the [[Definition:Market risk module | market risk module]] within the [[Definition:Solvency II | Solvency II]] [[Definition:Standard formula | standard formula]], designed to capture the potential impact on an [[Definition:Insurance carrier | insurer's]] [[Definition:Own funds | own funds]] arising from changes in foreign exchange rates. Because insurers routinely hold assets denominated in currencies different from their [[Definition:Technical provisions | technical provisions]] or operate across multiple jurisdictions, mismatches between asset and liability currencies can generate material volatility in the [[Definition:Economic balance sheet | economic balance sheet]] — and this sub-module quantifies the capital needed to absorb such shocks.

⚙️ Under the standard formula, the sub-module applies a prescribed stress — typically a simultaneous upward and downward shift of 25 percent in each foreign currency relative to the insurer's reporting currency — and measures the net effect on the [[Definition:Basic own funds | basic own funds]]. The capital charge is the larger of the two directional results, aggregated across all currency exposures with limited diversification benefit between currencies. Insurers can reduce this charge by naturally matching assets and liabilities in the same currency — a practice central to [[Definition:Asset-liability management (ALM) | asset-liability management]] — or by hedging with [[Definition:Derivative | derivatives]] such as forward contracts and cross-currency swaps, provided those hedges meet recognition criteria and are themselves reflected in the [[Definition:Counterparty default risk module | counterparty default risk module]]. Firms using [[Definition:Internal model | internal models]] may apply more granular calibrations based on historical volatility patterns, correlations between currency pairs, and portfolio-specific exposures, often producing charges that differ meaningfully from the standard formula's one-size-fits-all stress.

🌍 For globally active insurers and [[Definition:Reinsurance | reinsurers]] — particularly those headquartered in the eurozone but writing business in US dollars, Japanese yen, or emerging-market currencies — the currency risk sub-module frequently ranks among the most significant contributors to the overall [[Definition:Solvency capital requirement (SCR) | SCR]]. Strategic decisions about where to establish subsidiaries, which currencies to denominate [[Definition:Investment portfolio | investment portfolios]] in, and whether to hedge at the group level or entity level are all influenced by this capital charge. Outside Solvency II, other regimes address currency risk differently: the [[Definition:National Association of Insurance Commissioners (NAIC) | NAIC's]] [[Definition:Risk-based capital (RBC) | RBC]] framework in the United States incorporates foreign-exchange exposure through asset risk factors, while [[Definition:C-ROSS | C-ROSS]] in China includes explicit provisions for exchange-rate risk within its market risk pillar. Regardless of the regime, the underlying challenge is identical — ensuring that an insurer's balance sheet can withstand adverse currency movements without compromising its ability to meet [[Definition:Policyholder | policyholder]] obligations.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Market risk module]]
* [[Definition:Solvency capital requirement (SCR)]]
* [[Definition:Asset-liability management (ALM)]]
* [[Definition:Economic balance sheet]]
* [[Definition:Interest rate risk sub-module]]
* [[Definition:Own funds]]
{{Div col end}}

Definition:Currency risk sub-module - Revision history

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