Averages display all the common characteristics of support/resistance. For example, one average will often bounce off another one on a first test, rather than break through right away. Then, like price bars, the odds shift toward a violation and crossover on the next test. Alternatively, when one average can't break through another average after several tries, it sets off a strong trend-reversal signal.

Different holding periods respond to different average settings. One-to-three-day swing trades work well with averages that maintain a 3x to 4x relationship between shorter and longer periods. This allows convergence/divergence between different trends to work in the trader's favor.

For example, the daily chart may show a strong uptrend, while the 60-minute chart begins a deep pullback. A 40-day average will stay pointed in the trend direction for a long time, but a 13-day average (3x13=39) will turn down quickly, and head straight for the longer average. The point where they intersect represents a major support level.

 

Crossovers mark important shifts in momentum and support/resistance regardless of holding period. Many traders can therefore just stick with the major averages and find out most of what they need to know. The most popular settings draw charts with a 20-day for the short-term trend, a 50-day for the intermediate trend and a 200-day for the big picture.

Long-term crossovers carry more weight than short-term events. The Golden Cross represents a major shift from the bears to the bulls. It triggers when the 50-day average breaks above the 200-day average. Conversely, the Death Cross restores bear power when the 50-day falls back beneath the 200-day. The 200-day average becomes major resistance after the 50-day average drops below it, and major support after breaking above it. When price gets trapped between the 50-day and 200-day averages, it can whipsaw repeatedly between their price extremes. This pinball action marks a zone of opportunity for swing trades.