Markets: More mutual fund corruption exposed, this time it's Fidelity which used to be the top of the top. The performance culture is behind all this and the lack of transparency makes it all easy. As a person who knows the business from top to bottom, let me tell you that the entire business is corrupt, from the trading floors to the top of the brokerage business. Trading fees of a penny a share don't seem like much til you realize that a billion shares are traded every day, three billion if you include Europe and Asia. A billion times a penny is ten million dollars per day; thirty if you count all exchanges. That's a lot of commission.