Break of Structure tells you when a trend is continuing. Change of Character tells you when a trend may be ending. These two concepts work as a pair — BOS for trend following, CHOCH for trend reversal identification. The ability to distinguish between a pullback within a trend (which should be bought or sold with the trend) and a genuine trend reversal (which should be treated differently) is one of the most valuable structural skills in forex analysis. CHOCH provides the specific structural event that marks the transition from one to the other.
BOS vs CHOCH — The Distinction
The distinction is directional relative to the current trend. A BOS occurs in the same direction as the trend — it confirms continuation. A CHOCH occurs in the opposite direction — it challenges the trend structure. In an uptrend (Higher Highs and Higher Lows), a BOS is a close above the most recent Higher High. A CHOCH is a close below the most recent Higher Low — the first break of the uptrend's protective structural floor.
Uptrend established: HL1 at 1.0700. HH1 at 1.0850. HL2 at 1.0780. HH2 at 1.0950. HL3 at 1.0860. SCENARIO A — BOS (continuation): Price closes above 1.0950 (HH2). New HH established. Uptrend confirmed. Bullish BOS. SCENARIO B — CHOCH (potential reversal): Price falls and closes below 1.0860 (HL3). A Higher Low has been violated. The uptrend's structure is broken. Bearish CHOCH signal. The trend may be reversing.
What CHOCH Signals
CHOCH signals the first structural break against the trend direction. It does not guarantee a reversal — it indicates that the trend structure has been damaged and that the probability of continuation has decreased. After a CHOCH, the market must re-establish trend structure in the original direction (by making a new HH in the uptrend example) or confirm the reversal with a subsequent BOS in the new direction.
The significance of the CHOCH depends on the timeframe it appears on. A CHOCH on a 5-minute chart within a daily uptrend is a minor signal — the daily trend remains intact. A CHOCH on the daily chart in a trend that has been running for months is a significant signal — it may mark the beginning of a major trend change that produces weeks of directional movement in the new direction.
Bearish CHOCH
A bearish CHOCH occurs in an uptrend. The structural sequence is: price is making HH and HL. Price makes a new HH. Price then pulls back and instead of forming a new HL (as expected in an uptrend), it breaks below the previous HL. This break of the Higher Low is the bearish CHOCH — the first break of the uptrend's structural support floor.
Uptrend structure: HL1: 1.0700. HH1: 1.0850. HL2: 1.0780. HH2: 1.0960. Price pulls back from 1.0960. Expected: Forms HL3 above 1.0780. Actual: Price falls and closes below 1.0780. BEARISH CHOCH CONFIRMED. HL2 (1.0780) broken to the downside. Uptrend structure compromised. Subsequent analysis: If price then forms a LH below 1.0960 and breaks below the CHOCH level, a bearish BOS follows — confirming a full trend reversal to downtrend.
Bullish CHOCH
A bullish CHOCH occurs in a downtrend. The structural sequence is: price is making LL and LH. Price makes a new LL. Price then rallies and instead of forming a new LH (as expected in a downtrend), it breaks above the previous LH. This break of the Lower High is the bullish CHOCH — the first break of the downtrend's structural resistance ceiling.
Downtrend structure: LH1: 1.2700. LL1: 1.2500. LH2: 1.2620. LL2: 1.2420. Price rallies from 1.2420. Expected: Forms LH3 below 1.2620. Actual: Price closes above 1.2620. BULLISH CHOCH CONFIRMED. LH2 (1.2620) broken to the upside. Downtrend structure compromised. Subsequent analysis: If price forms a HL and then breaks above the CHOCH level, confirming a bullish BOS — full trend reversal to uptrend is confirmed.
Trading the CHOCH Setup
The CHOCH itself is an early warning — not an entry signal. The entry comes after the CHOCH, on the first pullback that forms in the new direction. In a bearish CHOCH scenario, the entry is on the rally after the CHOCH — the first Lower High forming after the structural break. This rally creates a bearish order block and potentially an FVG — both provide the entry zone for the first trade in the new direction.
Bearish CHOCH confirmed: Break below HL2 at 1.0780 on EUR/USD H4. Market structure now: potential reversal. Next event: Price rallies from the CHOCH break. This rally forms the first LH — let us say 1.0820. The last bullish candle before the next bearish impulse is the bearish order block. Trade setup: Entry: Short from the bearish OB zone during the rally pullback. Stop: Above the CHOCH candle high (above the LH that formed). Target: Prior structural low (LL established before the CHOCH).
CHOCH trades are counter-trend — they enter against the previous trend direction. They carry higher risk than BOS continuation trades because the trend has not yet fully reversed — only the structure has been damaged. Always apply smaller position sizes to CHOCH trades compared to BOS trades until the full reversal is confirmed by a subsequent BOS in the new direction.