Publication: Modelos VaR para calcular el capital mínimo regulatorio por riesgo de mercado
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2015
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Instituto Complutense de Estudios Internacionales (ICEI)
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La revisión de la regulación del riesgo de mercado de Basilea III contempla reemplazar los modelos VaR con una nueva métrica para el cómputo de los requerimientos mínimos de capital. En este trabajo se calcularán los requerimientos de capital por riesgo de mercado para una cartera de acciones del índice S&P500, entre el periodo 2000-2014 en base a la metodología RiskMetrics y alternativamente con modelos GARCH(1,1). Los resultados obtenidos muestran que el capital regulatorio calculado en base a las normas de Basilea II cubre en todo momento las pérdidas de la cartera.
The undergoing overhaul of the Basel III market risk regulatory framework addresses the possibility of replacing VaR models with an alternative method for calculating minimum capital requirements. This paper will calculate the regulatory capital for a hypothetical equity portfolio of 20 of the main stocks in the S&P500, between 2000 and 2014. The RiskMetrics methodology and GARCH(1,1) models are used to estimate volatilities, covariances and correlations. Our results show that the regulatory capital calculated using Basel II rules is at all times above realized portfolio losses.
The undergoing overhaul of the Basel III market risk regulatory framework addresses the possibility of replacing VaR models with an alternative method for calculating minimum capital requirements. This paper will calculate the regulatory capital for a hypothetical equity portfolio of 20 of the main stocks in the S&P500, between 2000 and 2014. The RiskMetrics methodology and GARCH(1,1) models are used to estimate volatilities, covariances and correlations. Our results show that the regulatory capital calculated using Basel II rules is at all times above realized portfolio losses.
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Número monográfico: La Crisis en la UEM
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