Cup and Handle
As the name implies, the cup and handle pattern consists of a large cup like formation with a small pullback area following it, forming a handle like pattern.
This is developed by the stock selling off over a period of a few weeks, bottoms out and starts moving up close to the initial highs before the drop. Then prices start to drift lower on decreasing volume, building a consolidation area. After the selling dries out, the stock resumes it's uptrend.
Optimum buy point is when the stock makes a new high on increased volume. In some cases, depending on the shape of the handle, a trendline can be drawn on top of the handle pattern and this line can be used as a buy point, to move in a bit earlier and therefore increase profits.