Investing Mistake 4: Fear based decisions
The costliest mistakes are usually fear based. Many investors do their research, select a great company, and when the market hits a bump in the road - dump their stock for fear of losing money. This behavior is absolutely foolish. The company is the same company as it was before the market as a whole fell, only now it is selling for a cheaper price. Common sense would dictate that you would purchase more at these lower levels (indeed, companies such as Wal-Mart have become giants because people like a bargain. It seems this behavior extends to everything but their portfolio). The key to being a successful investor is to, as one very wise man said, "...buy when blood is running in the streets."The simple formula of "buy low / sell high" has been around forever, and most people can recite it to you. In practice, only a handful of investors do it. Most see the crowd heading for the exit door and fire escapes, and instead of staying around and buying up a company for ridiculous levels, panic and run out with them. True money is made when you, as an investor, are willing to sit down in the empty room that everyone else has left, and wait until they recognize the value they left behind. When they do run back in, you will be holding all of the cards. Your patience will be rewarded with profit and you will be considered "brilliant" (ironically by the same people that called you an idiot for holding on to the company's stock in the first place).

