Morningstar fixed-income mutual fund style boxes summarize the funds:

Duration and credit quality (default risk)
	Investment objective given in the fund prospectus
	Alpha and Beta
	Convexity and Issuing sector

The empirical betas of actively managed mutual funds may be suspect because:

mutual fund portfolios have a large amount of unsystematic risk
	mutual fund return data is often outdated
	portfolio alphas (s) vary from fund to fund
	fund managers have an incentive to manipulate their betas
	portfolio turnover can be high