Many investors, professional and otherwise, believe that market moves can be predicted and that making frequent moves in and out of markets and investments will lead to greater returns. However, the data tells a different story, which is that market timing and frequent trading are harmful to your portfolio and will significantly reduce your overall return. Let’s begin by examining market timing.
The data below comes from research done by Terrance Odean, Ph.D., of Cal Berkeley, entitled, “Do Investors Trade Too Much?” Dr Odean discovered that amateur investors performed poorly after they made a trade (Either a buy or a sell, both speculative and non-speculative.) Thus, the stocks they sold did much better than the stocks they bought...