This Common Investing Mistake Will Cost You 20% Gains (And 10% Dividends)

One mistake I’ve seen investors make time and time again is leaning too heavily on the latest “investment product” their bank is pitching them.

The problem arises because at the heart of the banking system lies a key conflict of interest: banks make money off fees and interest charged on investments, loans, credit cards and other products, so they’re motivated to get you to use those tools more.