Continuation · Variable · Low reliability
Expanding Triangle Pattern Explained
Higher highs and lower lows make the range wider with each swing.
What it looks like
Broadening formation with alternating higher highs and lower lows — volatile; trade the break with tight risk.
Use as context alongside structure and risk rules.
Visual example
Illustrative geometry on ChartNox charts — not a live trade signal.
How to identify it
- Mark a higher high followed by a lower low.
- Draw two lines that spread apart across those swings.
- Expect wide swings. The break of a boundary is what gives a read.
When the read is wrong
Invalid if the swings stop widening and price starts to tighten.
Common mistakes
- Treating it as a reliable setup. It is one of the less reliable shapes in our library.
- Reading each swing as a breakout. False breaks are typical here.
Questions and answers
What is an expanding triangle?
A shape in which the highs rise and the lows fall, so the range keeps getting wider.
Why is it rated low reliability?
Volatility is high and the swings overshoot often, so a clean read is harder to get than with most patterns.
Ask ChartNox AI about Expanding Triangle
Open the tutor with this pattern pre-seeded. Educational coaching only — not a trade recommendation.
- How do I identify a Expanding Triangle on a chart, step by step?
- What usually invalidates a Expanding Triangle pattern?
- What mistakes do beginners make with Expanding Triangle?