BOS vs CHoCH explained.
BOS (Break of Structure) and CHoCH (Change of Character) are the two ways traders read market structure in ICT/Smart Money Concepts. The simple rule: BOS = the trend continues; CHoCH = the trend may be reversing. Together they give you a framework for knowing whether to trade with the current direction or prepare for a flip.
First: what is market structure?
Market structure is the sequence of swing highs and swing lows. An uptrend = higher highs (HH) and higher lows (HL). A downtrend = lower highs (LH) and lower lows (LL). BOS and CHoCH describe what happens when price breaks one of these swing points — and which direction it breaks tells you whether the trend continues or shifts.
BOS — Break of Structure (continuation)
A BOS happens when price breaks the most recent significant swing in the direction of the existing trend:
In an uptrend, price breaks above the previous swing high. Confirms higher-highs continue → uptrend intact. Look for longs.
In a downtrend, price breaks below the previous swing low. Confirms lower-lows continue → downtrend intact. Look for shorts.
CHoCH — Change of Character (reversal warning)
A CHoCH is the first break against the prevailing trend — the earliest structural sign of a potential reversal:
In an uptrend, the first time price breaks below a higher low. The uptrend's character has changed — a reversal down may be starting.
In a downtrend, the first time price breaks above a lower high. The downtrend's character has changed — a reversal up may be starting.
CHoCH is earlier and riskier than BOS. It's a warning, not a confirmation. Many CHoCHs fail and the trend resumes — which is why you confirm before trading them.
How to trade BOS and CHoCH
- BOS (continuation): after a bullish BOS, look for longs on the retracement into an order block or fair value gap left by the move.
- CHoCH (reversal): don't enter on the CHoCH alone. Wait for confirmation — often a follow-up BOS in the new direction, or a CHoCH that came right after a liquidity sweep.
- Combine with HTF bias: a CHoCH on the lower timeframe that aligns with higher-timeframe structure is far more reliable than a counter-HTF CHoCH.
- Risk: stop beyond the structural point that, if broken, would invalidate your read. Target the next liquidity level. Aim 1:2+ R-multiple.
The classic reversal sequence
Here's how BOS, CHoCH, and a liquidity sweep chain into one high-probability reversal (bullish example):
- Downtrend in progress (lower highs, lower lows, series of bearish BOS).
- Price sweeps sell-side liquidity below the last low (stop-hunt).
- Bullish CHoCH: price breaks above the last lower high — character change.
- Price retraces into the order block / FVG left by the CHoCH move.
- Entry long at the order block, stop below the sweep low.
- A follow-up bullish BOS confirms the new uptrend — you're already in.
Common mistakes
- Trading CHoCH without confirmation. CHoCH alone fails often. Wait for a follow-up BOS or a preceding liquidity sweep before committing.
- Using wicks instead of closes / body breaks. Decide whether you count a break on a wick or a candle close — and be consistent. Inconsistent structure-reading produces inconsistent results.
- Reading structure on one timeframe only. A lower-timeframe CHoCH against the higher-timeframe trend is usually just a retracement, not a reversal.
- Confusing BOS and CHoCH. Remember: BOS is WITH the trend (continuation), CHoCH is AGAINST it (first reversal sign). Mislabeling them inverts your entire read.
FAQ
Is CHoCH the same as a trend reversal?
Not quite — CHoCH is the first sign of a possible reversal, not the reversal itself. A confirmed reversal usually requires the CHoCH plus a follow-up break of structure in the new direction. CHoCH points you to watch; confirmation gets you in.
Do I use candle closes or wicks to mark a break?
Both methods exist. Body/close breaks are more conservative (fewer signals, fewer fakeouts); wick breaks are more sensitive (earlier, more noise). Pick one, stay consistent, and journal which gives better expectancy for your market.
How does this fit with the rest of ICT?
BOS/CHoCH is the market-structure layer of ICT / Smart Money Concepts. It tells you direction; liquidity sweeps tell you timing; order blocks and FVGs give you entry zones. Together they form a complete setup.
Journal your structure-based trades.
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