A price gap is an area on a chart where no trading has taken place.

When a longer-term weekly or monthly type of reversal pattern shows up on a bar chart, it is much more significant than a reversal day.

In almost all uptrends and downtrends after a particular market move, prices retrace a portion of the previous trend before continuing the move in the original direction. Studies show these countertrend moves tend to fall into predictable percentage parameters.

Speedlines is a technique that combines trendlines and percentage retracements.

LodgeNet Entertainment (LNET) is forming a descending triangle.

Sometimes a trendline needs to be adjusted. In the case of a steep line, as prices break the line, a slower trendline needs to be drawn. In the case of a flat trendline, a new line must be drawn at a steeper angle as the prices climb.

The relative steepness of the trendline gives the trader important information regarding the trend.

Andy Swan looks at trendline penetrations and trendline reverse roles.

Traders often use trendlines to help determine price objectives. What's the rule for when they're broken?

Andy Swan takes a look at where the stock market could be headed.