hxdbzxy/iStock via Getty Images Introduction I'm a firm believer like many others that stocks offer better returns over the longer term. The less time you own a stock, the riskier of an investment it becomes. And the longer you own it, the less risk it poses. However, if the fundamentals change or there is a better deal elsewhere, selling after owning for a short time can prove to be advantageous as well. In the current market that appears to be overvalued, many stocks don't seem very attractive at the  ...