BOS and CHoCH

Updated 2026-09-20

Definition

A Break of Structure is the break of a swing in the trend's direction (continuation); a Change of Character is the first break in the opposite direction (possible change).

Why it matters

The BOS confirms the trend; the CHoCH (or MSS) is an alarm, not a confirmation of reversal. They must be defined in writing: close beyond the level or wick only.

Practical example

In an uptrend, a close below the last higher low is a bearish CHoCH.

Learn more

Course lesson: Break of Structure, Change of Character and Market Structure Shift

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Educational content, not financial advice. Trading involves risk.