Price ActionAdvanced

Change of CharacterCHoCH

A change of character (CHOCH) usually describes the first break in the opposite direction to the trend — an early hint that the trend may be ending.

A change of character (CHoCH) is the first break against the trend: in an uptrend, a break below the last higher low; in a downtrend, a break above the last lower high. Some educators call a similar idea a market structure shift (MSS). It is an early warning, not a confirmed reversal.

Category
Price Action
Reading time
3 min
Also called
Market structure shift, Character change
Updated

Change of character in plain words

A change of character (CHoCH) is a clearer shift in structure, often after price has been stuck in a range.1

It hints that the balance between buyers and sellers may be changing.1

A closely related idea, the market structure shift (MSS), is a sharp break against the existing trend.2

How to spot a CHoCH

  1. Confirm the trend

    Mark higher highs and lows, or lower ones.

  2. Find the opposite swing

    In an uptrend, the last higher low.

  3. Price breaks it

    Look for a sharp break that goes against the current trend.2

  4. Treat it as a warning

    Treat it as a possible reversal, not a certain one.2

  5. Wait for follow-through

    Wait for a break of structure in the new direction; that continuation adds confirmation.2

  6. Manage open trades

    Tighten stops or reduce size on old-trend positions.

Worked examples

Example 1 — Bearish CHoCH

Warning

Hypothetical uptrend: higher low at 98, then a close at 97.

Example 1 — Bearish CHoCH — calculation
Last higher low98
Close97

Price broke sharply against the prevailing downtrend — the first sign of a change.2

Example 2 — Protecting a long

+500

Long from 92, price 100; after the CHoCH the trader exits at 97 with 100 units.

Example 2 — Protecting a long — calculation
Locked in5 × 100 = 500

The shift suggested buyers were taking over, so the trader acted early, with a tight stop.1

Example 3 — False signal

−2.50

After the CHoCH at 97, price recovers to 104.

Example 3 — False signal — calculation
Short from 96.50, stop 99−2.50 per unit

The reversal signal failed here — a reminder that it only points to a possible turn.2

CHoCH vs BOS

AspectCHoCHBOS
DirectionAgainst trendWith trend
MeaningPossible reversalContinuation
FrequencyRarerMore common
ActionCautionJoin trend

Where CHoCH is used

Advantages and disadvantages

Advantages

  • Early warning of a trend change.
  • Clear level to watch.
  • Useful for exits.

Disadvantages

  • Many CHoCHs fail.
  • Swing selection is subjective.
  • Terms vary between educators.
  • Lower timeframes give more noise.

Going deeper

Read as far as you need. Each level builds on the one before it.

Definition

Beginner

A CHoCH is a more decisive break in structure, typically coming out of a sideways phase.1

MSS

Intermediate

Think of the pair this way: an MSS breaks against the trend, while a BOS breaks with it.2

Caution

Advanced

Because the signal only suggests a turn, always trade it with clear risk limits.2

Common mistakes

  1. Reversing on the first signal

    Wait for confirmation.

  2. Mixing timeframes

    Stay consistent.

  3. Ignoring news

    Events can cause one-off breaks.

  4. No stop on counter-trend trades

    Define risk.

Check your understanding

Test yourself before moving on. Each answer comes with an explanation.

Q1In a downtrend, a CHoCH is a break above…
Q2Short at 80, stop 82, 300 units. Risk =

Key points to remember

  1. CHoCH is the first break against the trend.
  2. It hints at a possible reversal.
  3. Similar to MSS.
  4. Confirm with follow-through.
  5. Many signals fail.

Frequently asked questions

Is CHoCH a reversal?

Only a possible one.

CHoCH or MSS?

Often used for similar ideas; definitions vary.

Can I trade it alone?

Most combine it with other evidence and risk rules.

Further learning

Sources

This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.

  1. CMC Markets. Smart money concept explained (opens in a new tab) Checked .
  2. Equiti. MSS vs BOS: a full guide for traders learning market structure (opens in a new tab) Checked .

Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.