This potentially is a problem because there will be many occasions while trading, your entrance does not head in the anticipated direction. The time tested rule of ‘cutting your losses’ would be most applicable
they have to sell or buy in small pieces... creating trends... they can't trade a single order to sell billions... because the order would be huge and the intention seen by the other big players. The war is to fool everybody else... but.. since all use computers now.. it is very difficult to...
One should keep in mind that the markets are dynamic. Generally The forces that motivate price movement are dynamic, and the participants are dynamic. Therefore any system which has performed well on past historic data may decline in value as the evolving dynamics of the markets change over...