Regulatory Stress Testing

In order to ensure financial stability, the supervisory authority assesses the resilience of financial institutions to adverse market developments. One of the assessment tools is mandatory Stress Testing focusing on the impact of risk factors on the institutions’ capital adequacy.

Stress tests are based on macroeconomic scenarios, related methodological notes and a set of templates issued by the regulator. Banks are required to provide both qualitative and quantitative information in the stress test deliverables. The testing consists of a baseline and an adverse scenario, both within a 3-year horizon. The impact of the scenarios is monitored via multiple types of risk areas.

Risk Areas

In each of the risk areas, the banks face the following challenges:

Credit Risk


    • Translation of the credit risk impact of the macroeconomic scenarios on both the capital available and the risk-weighted exposure amount for positions exposed to the risk of counterparty default
    • Estimation of credit impairments using statistical methods
    • Transformation of scenarios into risk parameters

Market Risk, CCR Losses and CVA

Operational Risk


    • Projection of operational risk losses stemming from inadequate or failed internal processes, people and systems or from external events
    • Quantitative approach based on internal model or relevant indicator

Non-Interest Income, Expenses and Capital


    • Projection of non-interest income and expenses not covered by credit, market or operational risk areas, based on internal methodology and growth rate parameters
    • One-off events adjustments

Calculation of Net Interest Income


    • Determination of the calculation methodology
    • Configuration (development) of the model for NII projections based on the static balance sheet assumption
    • Reconciliation of input data, data aggregation and application of scenarios

Completing the stress test templates within the given timelines might be demanding, especially in terms of human resources and understanding the methodology. PwC can support banks to overcome the abovementioned challenges by providing senior expertise as well as our automatization tools (including simulation of portfolio development under stress-testing conditions for NII purposes) in order to assist with the completion of the templates. In addition, PwC offers to provide project management throughout the whole process of stress testing.

Contacts

Rostislav Černý

Rostislav Černý

Risk Management & Modelling, PwC Czech Republic

Tel: +420 775 176 782

Jiří Mach

Jiří Mach

Financial Services Risk and Regulatory, PwC Czech Republic

Tel: +420 703 186 914

Ondřej Glatz

Ondřej Glatz

Financial Risk Modelling, PwC Czech Republic

Tel: +420 608 113 228

Petr Novák

Petr Novák

Risk Data, PwC Czech Republic

Tel: +420 602 383 972

Jan Muchna

Jan Muchna

Financial Risk Modelling, PwC Czech Republic

Tel: +420 777 563 619

David Dolejší

David Dolejší

Financial Risk Modelling, PwC Czech Republic

Tel: +420 731 282 814