“Commissions add up, taxes are a big drag, margin ain't cheap. A good accountant costs money as well. The math on this one is obvious, yet investors often fail to recognize it: Keep your costs low and your turnover lower, and you will win in the end.”

American businessman and author

Barry Ritholtz is an American businessman and author. He is the founder and chief investment officer of Ritholtz Wealth Management, and he first drew wider attention for warning about the risks in derivatives and mortgages before the subprime mortgage crisis. His work is rooted in financial planning and asset management. He is best known for commenting on market risk and the forces behind major financial disruptions, especially in the years leading up to the crisis.