Market StructureLesson 3 of 53 min read

CHoCH and Break of Structure (BOS)

Change of Character (CHoCH): The Early Warning

A Change of CharacterDefinitionThe first signal that a trend may be ending. Price breaks a key swing point against the prevailing trend. is the first signal that the current trend may be ending. It occurs when price breaks a key swing point in the opposite direction of the prevailing trend.

  • Bullish CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. — in a downtrend (lower lows, lower highs), price breaks above the most recent swing highDefinitionA peak on the chart where price reversed lower. Marks where sellers previously overpowered buyers.. First higher high in the sequence — first sign buyers might be taking over
  • Bearish CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. — in an uptrend (higher highs, higher lows), price breaks below the most recent swing lowDefinitionA trough on the chart where price reversed higher. Marks where buyers previously overpowered sellers.. First lower low in the sequence — first sign sellers might be taking over

Key Insight

CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. is the early warning, not the confirmation. It tells you that the trend might be changing, not that it has changed. Think of it as the yellow light — the red light is BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH..

When you spot a CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction., take action:

  • Tighten stops on existing trend trades
  • Start looking for potential entries in the new direction
  • Watch for confirmation via BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH. before fully committing
Change of Character — the first break of the prevailing pattern signals a potential trend change
Change of Character — the first break of the prevailing pattern signals a potential trend change

Break of Structure (BOS): The Confirmation

Break of Structure is the confirmation that the trend has changed. While CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. is the first crack, BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH. is the break.

After a CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. fires, if price continues in the new direction and breaks the next swing point, that is a BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH.. The trend change is confirmed:

  • Bullish BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH.CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. breaks the first swing highDefinitionA peak on the chart where price reversed lower. Marks where sellers previously overpowered buyers. (early warning). Price makes a higher low. Then price breaks the next swing high — new uptrend confirmed
  • Bearish BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH.CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. breaks the first swing lowDefinitionA trough on the chart where price reversed higher. Marks where buyers previously overpowered sellers. (early warning). Price makes a lower high. Then price breaks the next swing low — new downtrend confirmed
Break of Structure — CHoCH warns, BOS confirms. The sequence from downtrend to CHoCH to BOS to new uptrend.
Break of Structure — CHoCH warns, BOS confirms. The sequence from downtrend to CHoCH to BOS to new uptrend.

Key Insight

BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH. confirms what CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. suggested. Once you have both CHoCH and BOS, the structural shift is real. Your bias should now be firmly in the direction of the break.

Real Chart Example: MNQ 15-Minute

Here is a real example on the MNQ 15-minute chart showing CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. and BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH. in action. Notice how the Market Structure Indicator automatically identifies these structural shifts. The CHoCH fires first as an early warning, then BOS confirms the trend change. This is exactly how you should read structure in real-time.

NinjaTrader Chart
CHoCH and BOS on an MNQ 15-minute chart — real example showing the Market Structure Indicator identifying structural shifts in real-time
CHoCH and BOS on an MNQ 15-minute chart — real example showing the Market Structure Indicator identifying structural shifts in real-time

Key Insight

This is an MNQ 15-minute chart using the Market Structure Indicator. The indicator automatically plots CHoCHDefinitionChange of Character — the first warning a trend may be ending. Price breaks a swing point in the opposite direction. and BOSDefinitionBreak of Structure — confirms a trend change. Price breaks the next swing point after CHoCH. levels so you do not have to draw them manually.

See These Concepts on Your Chart

The Market Structure Indicator brings these concepts to life — automatically plotted on your NinjaTrader chart so you can focus on execution.