Symmetrical Triangle
Requires ConfirmationA bilateral pattern formed by a falling trendline of lower highs and a rising trendline of higher lows, converging toward an apex. Unlike ascending or descending triangles, it carries no inherent directional bias.
Candlestick chart with a falling trendline of lower highs and a rising trendline of higher lows converging toward an apex, followed by a breakout above the falling trendline.
Sample data — illustrative only, generated to demonstrate this pattern's shape. Not a real security.
Identification Criteria
- A falling trendline connects at least two successively lower highs.
- A rising trendline connects at least two successively higher lows.
- The two lines converge symmetrically toward an apex, narrowing the trading range.
- Volume characteristically contracts steadily as the pattern narrows — a genuine symmetrical triangle should show a visibly quieter tape near the apex.
Formation Logic
The pattern reflects a genuine standoff between buyers and sellers rather than a directional bias — both sides are making smaller concessions over time, compressing volatility. Because neither side is clearly winning, the eventual breakout direction is determined by whichever side gives way first, which is why this pattern is classified as bilateral rather than bullish or bearish.
Breakout / Confirmation Rule
Because the pattern has no inherent direction, treat the prevailing trend before the triangle formed as a tie-breaker, but require a decisive close beyond either trendline — with a volume increase — before assuming a direction. Breakouts occurring very late, near the apex, tend to have the least follow-through.
Measured-Move Price Target
A commonly used, purely illustrative measured-move technique: measure the height of the triangle at its widest point (the vertical distance between the first high and the first low), then project that distance in the direction of the eventual breakout.
Common Pitfalls
- The single biggest risk with symmetrical triangles is guessing the breakout direction in advance — by definition, the pattern does not signal one.
- False breakouts near the apex, where liquidity is thinnest, are common.
- A pattern with fewer than two clear touches on each trendline is not a reliable triangle — it is just noise inside a converging range.