by Edward Revy » Wed Mar 10, 2010 6:37 pm
Hi ivanlim,
For every buyer in the market there is a seller. Trends form when one of the sides gets stronger and confidently presses on. But with time everyone needs a break: to take profits, to adjust risks, to get our with a loss (for some), to reverse a position etc - majority of these operations take place at market support/resistance levels - so called "pit-stops" for every trend. So, as the interest temporarily eases on one side, the opposite forces take over causing the market to retrace or completely reverse.
Retracements are expected and wanted by many traders, since it is the most cost & risk efficient way to enter the market, which is already trending.