Jun 14, 2013 07:40
According to the OCC, a “top down” portfolio stress testing approach applies “estimated stress loss rates under one or more scenarios to pools of loans with common risk characteristics.” It provides an aggregate view of a portfolio or portfolio segment during stress scenarios, rather than analyzing the performance of individual loans. Top down stress testing requires financial institutions to properly segment their portfolio into reasonable pools for setting loss rates and using an appropriate methodology for each of the segments. If used appropriately, top down stress testing adds additional insight to a financial institution’s risk management practices. [More]