Trading stocks using chart patterns is a lot like fishing—patiently waiting for a chart pattern to appear and excitement when the chase begins. If you're lucky, the sweetness of success will overcome the bitter taste of failure. You will have both, but trendlines can help.
Trendlines are overlooked chart patterns, but serve as wonderful tools to help gauge where price is going. They are the logical choice to begin our exploration of chart patterns.
If you look at almost any price chart, your eyes will find prices that zigzag but still follow an imaginary path. That path is called a trend. If you draw a line connecting the peaks or valleys along that trend, you get a trendline. A trendline can outline a chart pattern as we will see in Figure 3.1 (the falling wedge), or it can highlight a price trend (trendline C). Trendlines indicate buying or selling opportunities when price crosses them.
Figure 3.1 shows examples of several trendlines. Trendline C is a good example of a trendline. Price touches the line multiple ...