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    Comparison

    Symmetrical Triangle vs Bullish Pennant

    A pennant looks like a small symmetrical triangle, but it follows a sharp, almost vertical move (the flagpole) and is short-lived. A symmetrical triangle can form anywhere, takes longer, and has no built-in direction. A pennant's bias is the direction of the flagpole.

    Symmetrical Triangle

    neutral bias

    Lower highsHigher lows
    Simplified Symmetrical Triangle structure. Real charts are noisier; the shape matters more than exact symmetry.

    A symmetrical triangle forms when lower highs and higher lows converge. It shows a market coiling with neither side in control, and it is resolved by whichever boundary breaks first.

    Bullish Pennant

    bullish bias

    Upper lineLower line
    Simplified Bullish Pennant structure. Real charts are noisier; the shape matters more than exact symmetry.

    A bullish pennant is a brief consolidation shaped like a small symmetrical triangle that forms right after a sharp rally. Like a flag, it reads as a pause in a strong move rather than a reversal.

    Side by side

    AspectSymmetrical TriangleBullish Pennant
    Move before itNot requiredA sharp flagpole move
    Size and durationLarger, often many swingsSmall and brief relative to the flagpole
    BiasNone until it breaksThe direction of the flagpole
    TargetWidest height of the triangle, from the breakLength of the flagpole, from the break

    How to tell them apart on a chart

    • Look for the flagpole. Without a sharp move into it, call it a triangle.
    • If the consolidation runs on for a long time compared with the flagpole, it is losing the pennant's character.
    • Both are confirmed by a close outside the converging lines.

    Symmetrical Triangle: confirmation and invalidation

    Confirms: A close outside either trendline. The direction of the break sets the bias, not the pattern itself.

    Invalidated: A quick move back inside the triangle after a breakout suggests a false break.

    Bullish Pennant: confirmation and invalidation

    Confirms: A close above the pennant's upper line.

    Invalidated: A close below the pennant's lower line.

    Frequently asked questions

    Is a pennant a continuation pattern?

    Usually. It is read as a pause after a sharp move, with the expectation the move continues. It can still fail.

    Can a symmetrical triangle be a reversal?

    Yes. Because it has no built-in bias, the break can go either way relative to the earlier trend.

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    Educational content only, not financial advice. Chart patterns describe probabilities, not certainties, and every pattern can fail. See our disclaimer.