By comparison, the average diversified stock mutual fund manager, according to Lipper, had a total return of 12.37% last year.

FORBES: Magazine Article

Although there is still limited empirical evidence on the relative performance of socially responsible investing in comparison to conventional investing, one 2000 study concluded that social mutual funds perform no better or worse than conventional mutual funds.

FORBES: Friend or Foe? Fiduciary Duties Meet Socially Responsible Investments

Comparison showed that such an unmanaged portfolio beat 90% of all mutual funds, an embarrassing outcome for mutual fund advisors.

FORBES: Cheating The Random Walk