Abstract
Empirical research on the performance of managed portfolios with multi-index models has only been using the alpha as performance metric. This paper assesses the ranking abilities of the alpha, the Information Ratio and the Generalized Treynor Ratio proposed by Hubner (2005) on a sample of directional mutual funds. The quality of a ranking scheme is examined along two dimensions: precision and stability. A precise measure will produce the same ranking of funds with alternative benchmark portfolios. A stable measure will produce the same ranking with different model specifications. For both criteria, the Generalized Treynor Ratio provides superior results, especially when nonparametric concordance measures are used.
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