Course/Directional Bias/The Break & The Shift

The Break & The Shift

BOS and CHoCH Explained

Two Signals That Change Everything

Once you can identify a trend, you need to know when it continues and when it changes. This comes down to two concepts:

BOS – Break of Structure (Continuation)

A BOS occurs when price breaks a previous structural point in the direction of the trend.

In a bullish trend:

  • •Price breaks above the most recent Higher High
  • •This confirms the trend is continuing
  • •It's a signal of strength

In a bearish trend:

  • •Price breaks below the most recent Lower Low
  • •This confirms the downtrend is continuing
  • •Sellers remain in control

Key Rule: A valid BOS requires a candle body close beyond the structural point – not just a wick.

Note: A wick sweeping through a previous high/low can still count as a new swing high/low for structure-labeling purposes (see Trend Anatomy). But that alone does NOT count as a BOS – a BOS specifically requires a candle body close beyond the level, not just a wick poking through it.

CHoCH – Change of Character (First Reversal Sign)

A CHoCH is the first signal that the current trend may be shifting.

In a bullish trend, CHoCH occurs when:

  • •Price breaks below the most recent Higher Low
  • •This is the first Lower Low – breaking the HH/HL sequence
  • •It doesn't guarantee reversal, but it's a warning sign

In a bearish trend, CHoCH occurs when:

  • •Price breaks above the most recent Lower High
  • •This is the first Higher High – breaking the LH/LL sequence

BOS vs CHoCH – The Critical Difference

SignalDirectionMeaning
BOSWith the trendContinuation confirmed
CHoCHAgainst the trendPotential reversal starting

How to Trade These Signals

  • •After a BOS: Look for pullback entries in the direction of the trend
  • •After a CHoCH: Be cautious. Wait for a second confirmation (another BOS in the new direction) before switching bias
  • •Never trade a CHoCH alone – it's a warning, not a guaranteed reversal
"BOS tells you the trend is alive. CHoCH tells you it might be dying. Neither tells you the future – they tell you the present."

Interactive Visual

BOS (Continuation) & CHoCH (Reversal)
BOS ↑CHoCH ↓HHHLHHHLHHLHLHLL
Bullish Phase Bearish Shift BOS Level CHoCH Level

Knowledge Check

1/3

What does a BOS (Break of Structure) confirm?