Trading online you should remember that there are a few kinds of risks. The first one is from the hackers that need to steal your username and password. They can find many ways to do this. And new ways are being developed all the time. Having your username and password they can easily access your account and buy or sell whatever they want to, as you do. So they will sell all the shares that you have amassed, and with the money he thus receives will but shares on micro-caps.
But what actually micro-caps are. These are thinly traded stocks, also known as penny stocks. Buying shares of that micro-cap with your money they drive up the price for the particular share. He sells his own holdings at a considerable benefit when the price is quite high. When the money is wired to an account in a different country or a series of straw men and dummy corporations are used to transfer it to their account.
As it also known that internet provides a great opportunity to manipulate stocks which are unheard of and have very light trading. Only when people know about trading on a stock, they will do this. Then they will have to understand there will be a definite positive benefit in trading on that stock. Starting a thread on that stock is what the broker will do. By the way, most discussion forums and threads in them allow the same person to post countless messages under different pseudonyms.
Creating a number of pseudonyms for him and posting messages about the particular stock is what the broker has to do. The text of the message would of course be favorable toward that stock now with so much discussion about a particular stock and most of it being positive, investors will get interested.
With these pseudonyms they won't find out it is the same broker who has been posting all the messages. Rising interest transforms to rise in activity on the trade of that stock that is manipulated. A similar thing can be done by the PR executive of the company or a large shareholder of the stock.
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