What is the advantage of buying mutual funds from full commissioned stockbrokers? There is none. Researchers at Harvard and the University of Oregon compared returns on commissioned mutual funds versus non-commissioned funds and found that the people make more money on commission-free funds time and time again. Many stockbrokers are above board and just charge you the company fees. But there are also dirty brokers who get paid extra to put you in poorly performing funds. They are referred to as “incentives” but what they really are is kickbacks. So, stick to commission-free or no-load funds when setting up your portfolio. They’re much better for your wallet.