Triangle patterns are one of the most debated continuation patterns in technical analysis on the Forex market. These triangle formations resemble ‘Flags’ and ‘Pennants’, but without an initial upward or downward movement.
Trading Signals for the Symmetrical Triangle
A symmetrical triangle forms when there is a balance between bullish and bearish forces, and volatility gradually decreases. The price becomes confined within a narrow range. A symmetrical triangle can be drawn with at least two swing lows and two swing highs in this narrowing formation. Typically, the pattern consists of two converging lines of support and resistance.

After breaking out of the narrow range, the price typically makes a sharp move in one direction, often following the original trend. This is why the symmetrical triangle is considered a continuation pattern.
In a properly formed symmetrical triangle, the number of waves should be odd, usually five to seven. The breakout occurs on the last odd wave. After the breakout of this price pattern, the price usually moves a distance equal to the height of the triangle’s base.
Trading Signals for the Expanding Triangle
Another type of triangle in technical analysis is the expanding triangle. It is similar to the symmetrical triangle, but its peak (sharp angle) forms before the base. In this case, the support and resistance lines diverge.

The expanding triangle forms due to low volume after a trend has faded, with volume gradually increasing as the pattern develops.
In technical analysis, the breakout from support/resistance levels serves as the entry point when using the expanding triangle pattern. After the breakout, the price usually tests the opposite side of the support/resistance lines.
Example of the Expanding Triangle Pattern

FAQ
What is a symmetrical triangle in technical analysis?
A symmetrical triangle is a continuation pattern that forms when price action narrows between converging support and resistance lines, often signaling a continuation of the prior trend.
How does an expanding triangle differ from a symmetrical triangle?
An expanding triangle differs by having diverging support and resistance lines, forming a wider pattern as it develops, often indicating a potential reversal rather than a continuation.
When should traders enter a trade based on triangle patterns?
Traders typically enter a trade after a breakout from the triangle pattern, with the direction of the breakout often following the previous trend for symmetrical triangles, while expanding triangles may signal a reversal.



