Aggregation risk refers to the potential financial risk that arises when multiple exposure sources are combined, leading to a concentration of vulnerability. In finance and payment sectors, this risk arises when multiple transactions or contracts with similar characteristics are grouped together, which can amplify the impact of adverse events.
For example, a payment processor that manages a large volume of transactions from a single industry may face greater risk if that sector encounters economic difficulties. The simultaneous failure or default of multiple entities in this sector could result in significant losses for the processor.
Aggregation risk is relevant in assessing the creditworthiness of lenders, insurers, and investors, as concentrated exposures can distort risk profiles and complicate risk management. Understanding and mitigating aggregation risk is essential for financial institutions to ensure stability and protect against systemic failures.
