Active mutual funds in Spain: are management fees justified by their performance?
Loading...
Official URL
Full text at PDC
Publication date
2026
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Citation
Abstract
En las últimas décadas, el desarrollo y expansión de diversos instrumentos de inversión pasiva han supuesto un desafío para el modelo tradicional de fondos de inversión activos. Para analizar si las comisiones aplicadas por dichos fondos están justificadas por la obtención de un rendimiento consistentemente superior al del mercado, hemos examinado la rentabilidad histórica de veinte fondos activos españoles. Para este estudio, hemos dividido la muestra según la estructura institucional y el volumen de activos bajo gestión de los fondos. Por otra parte, hemos desarrollado un modelo de regresión lineal cuyo objetivo es evaluar si el Ratio de Gastos Totales se ve influenciado por estos factores. Finalmente, hemos interpretado los resultados del análisis cuantitativo desde la perspectiva tanto de la Teoría de los Mercados Eficientes como de las finanzas conductuales, evaluando si el Ratio de Gastos Totales representa una retribución proporcionada por la generación consistente de rentabilidad adicional, o si, por el contrario, resulta meramente una “prima conductual” sufragada por inversores no profesionales.
The rise and expansion of low-cost passive investment vehicles in the last decades have challenged the traditional active fund industry. To analyse whether the current fee structures of active mutual funds are justified by consistent market outperformance, we examined the historical returns and performance metrics of twenty Spanish active funds. Additionally, we studied the implications of their institutional structure and the size of their asset base. Furthermore, we developed a linear regression model to determine if these factors effectively influence the Total Expense Ratio (TER). Ultimately, we interpreted these results through the lenses of the Efficient Market Hypothesis and behavioural finance, evaluating whether the TER is a reward for consistent additional returns, or merely an expensive “behavioural premium” paid by non-professional investors.
The rise and expansion of low-cost passive investment vehicles in the last decades have challenged the traditional active fund industry. To analyse whether the current fee structures of active mutual funds are justified by consistent market outperformance, we examined the historical returns and performance metrics of twenty Spanish active funds. Additionally, we studied the implications of their institutional structure and the size of their asset base. Furthermore, we developed a linear regression model to determine if these factors effectively influence the Total Expense Ratio (TER). Ultimately, we interpreted these results through the lenses of the Efficient Market Hypothesis and behavioural finance, evaluating whether the TER is a reward for consistent additional returns, or merely an expensive “behavioural premium” paid by non-professional investors.











