Support and resistance has long been a staple in trading indicators. Support and resistance is a simple concept that has its roots in the supply and demand theory. When looking at a chart you see price action that appears to be random but, by adding support and resistance theory to the equation you will see that the price movements are not always random. I first noticed this before I started trading. I used to watch the stock ticker on T.V. and over time I noticed that at certain price levels on the Dow Jones Industrial Average would seem to have difficulty breaking throughsome price levels. It was more obvious when the price tried to move through round numbers.
