Chart Patterns

Symmetrical Triangle

Also called: coil

A consolidation of lower highs and higher lows converging to a point, where a breakout in either direction resolves the squeeze.

A symmetrical triangle forms as the range narrows: each rally peaks lower and each dip bottoms higher, coiling price toward an apex. It reflects indecision and a volatility contraction that often precedes a sharp expansion move.

Because it's neutral, traders wait for the breakout to pick a side — a close outside either trendline on rising volume — rather than predicting the direction in advance.

On StockSetups

Symmetrical triangles are tagged neutral in StockSetups' pattern-bias model; the scan surfaces the bullish resolution on the long board, and the volatility-squeeze indicators (Bollinger/TTM) help flag the coil before it fires.

Related terms

See symmetrical triangle on tonight's board.

StockSetups scans the whole US market after the close and draws the patterns, levels and indicators on every chart.

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