This is courtesy of Barry Ritholtz:
<*I>But O’Shaughnessy relays one anecdote from an employee who recently joined his firm that really makes one’s head spin.
O’Shaughnessy: “Fidelity had done a study as to which accounts had done the best at Fidelity. And what they found was…”
Ritholtz: “They were dead.”
O’Shaughnessy: “…No, that’s close though! They were the accounts of people who forgot they had an account at Fidelity.”
http://www.businessinsider.com/forgetful-investors-performed…