In a previous article, we highlighted a flaw in the average credit quality statistic frequently reported by bond mutual funds. That statistic understates the credit risk in bond portfolios if the portfolios contain bonds of disperse credit ratings. We explained that portfolio managers wanting to...

The SLCG study explains that the Average Credit Quality statistic as typically calculated by the mutual fund companies and by Morningstar significantly overstates bond mutual funds' true credit quality. This statistic is based on Standard & Poor's and Moody's assessment of the credit risk of the...