Scalpers are people who tear scalp on the go. They usually play on very, very small, short market movements or in small outputs of prices. How it works in practice? Suppose the price is somewhat rises, and then freezes at a certain mark. About what awaits the market further, no one knows. And at this very time, these scalpers appear. They buy and sell violently. Respectively, the price is allowed up or down. Nothing really happens, but it is worth noting that positional traders at that moment may be somewhat deceived and try to “add” several points to the position at this time. It is to them that the players, whom we call scalpers convey their superior positions. It turns out that they just stood on several points of the movement (recall that they themselves organized it). There is a purest, as they say, divorce. But no one will bear any responsibility for him and even an experienced representative in civil matters will not be able to help in this situation. Scalpers just play nerves at positional traders. This strategy is very effective, but also quite complicated. The minimum scalp can be called a movement of 2 commission long (also + another point).With regard to INDX: 5 points of price of price to $ 10 tools.