Technical analysis uses historical price and trading volume in chart format to attempt to predict the direction of securities prices and the demand for them. It does not make use of the tools of either top-down or bottom-up fundamental analysis. The entire premise of technical analysis would appear to fly in the face of the efficient markets. 

A method of evaluating securities by analyzing statistics generated by market activity, such as past prices and volume. Technical analysts do not attempt to measure a security's intrinsic value, but instead use charts and other tools to identify patterns that can suggest future activity.