Bill Ackman of Pershing Square Capital Management speaks during the Ira W. Sohn investment research conference in New York May 27, 2009. REUTERS/Lucas Jackson (UNITED STATES BUSINESS)
The more frequently you monitor your portfolio, the more likely you are to observe a loss. This is likely to cause short-sighted decisions and could hurt your investment performance. If you are checking your portfolio more than once per quarter, you’re doing it too much.