Fake Big Orders – One of the best ways to mess with the psychology of the market is to show big orders on a level 2 screen. Big orders on the bid make it seem like there is a large demand for the stock, while big orders on the ask make it seem like there is a lot of supply. These levels can act as mental support and resistance levels for traders using level 2 screens. Market makers know this and can place big orders to move the stock in a certain direction. For example, if I buy 100,000 shares of a stock at .03, and it runs to .04 where there is a market maker showing 5 million shares for sale, I (along with other traders) may sell the stock. The large order may not even get filled at all, however, its presence alone has an effect.
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