Change of Character (CHoCH)
The first sign a trend may be reversing, when price breaks structure in the opposite direction.
A Change of Character (CHoCH) is a structure break that goes against the current trend — unlike a BOS, which confirms the trend. It is the very first clue that a reversal may be forming.
Example: in an uptrend, price breaks a higher low instead of printing a new higher high. That single event is enough to shift the bias from bullish to potentially bearish.
How to spot it: in an uptrend, mark the last higher low — the swing that launched the most recent leg up. As long as that level holds, the bullish structure is intact. The moment a candle closes below it, you have a CHoCH. The mechanism is symmetrical in a downtrend, on the last lower high.
There is a nuance the simplified diagrams gloss over: not all CHoCHs are worth the same. A CHoCH breaking a low that produced a wide, impulsive move is far more meaningful than one breaking a limp low in the middle of a consolidation. The quality of the broken swing determines the credibility of the signal.
How to trade it? Two schools, and you need to pick yours in advance. The patient approach waits for confirmation: after the CHoCH, you want a BOS in the new direction before repositioning. You miss the start of the move but avoid most false signals. The aggressive approach treats the CHoCH itself as the trigger and looks for an entry at the value zone created by the breaking move — better price, lower hit rate.
The classic mistake: reading a CHoCH as a completed reversal. A CHoCH does not announce a reversal, it opens a possibility. In a strong trend it is very common to see a CHoCH on a lower timeframe, a liquidity sweep, then the original trend resuming as if nothing happened. A CHoCH never followed by a BOS in the new direction was, in hindsight, just a deep pullback.
Second trap: picking the wrong reference swing. Many traders take the low nearest current price — often a micro-oscillation — and declare a CHoCH at the market’s slightest breath. The low that matters is the one that launched the last impulsive leg, not the most recent one.