Triangle

The Ascending Triangle

The ascending triangle is formed when the market makes higher lows and the same level highs. These patterns are normally seen in an uptrend and viewed as a continuation pattern as buying demand gain more and more control, running up to the top resistance line of the pattern. While you normally will see this pattern form in an uptrend, if you do see it in a downtrend it should be paid attention to as it can act as a powerful reversal signal.
The chart below offers an example of an ascending triangle.


The Descending Triangle

The descending triangle is formed when the market makes lower highs and the same level lows. These patterns are normally seen in a downtrend and viewed as a continuation pattern as the bears gain more and more control running down to the bottom support line of the pattern. While you normally will see this pattern form in a downtrend, if you do see it in an uptrend it should be paid attention to as it can act as a powerful reversal signal.
The image below illustrates



The Symmetrical Triangle

The symmetrical triangle is formed when the market makes lower highs and higher lows and is commonly associated with directionless markets as the contraction of the market range indicates that neither the bulls nor the bears are in control. If this pattern forms in an uptrend then it is considered a continuation pattern if the market breaks out to the upside and a reversal pattern if the market breaks to the downside. Similarly if the pattern forms in a downtrend it is considered a continuation pattern if the market breaks out to the downside and a reversal pattern if the market breaks to the upside.
The image below illustrates


Source: Wikipedia