# Break of Structure > A break of structure happens when price takes out the last swing high in an uptrend or low in a downtrend. Learn how to confirm a BOS and trade the continuation. Source: https://learn.tradelabsai.com/price-action/break-of-structure/ Track: Price Action · Level: Beginner · Updated: 2026-10-03 Publisher: TradeLabs AI (https://tradelabsai.com). Education, not financial advice. Cite as: TradeLabs Learn, "Break of Structure", https://learn.tradelabsai.com/price-action/break-of-structure/ A break of structure (BOS) is when price moves beyond the most recent swing point in the direction of the trend: a new higher high in an uptrend, or a new lower low in a downtrend. It confirms that the trend is continuing. The term is especially popular in smart money concepts, but the idea is pure classical price action: trends continue by breaking their previous extremes. ## BOS vs change of character | | Break of structure (BOS) | Change of character (CHoCH) | |---|---|---| | Direction | With the trend | Against the trend | | Uptrend example | Price breaks above the last higher high | Price breaks below the last higher low | | Meaning | Trend continuation | Possible trend shift | See [Change of Character](https://learn.tradelabsai.com/price-action/change-of-character/) for the reversal side. ## How to confirm a break Traders disagree on what counts as a real break. The main choices: 1. **Wick break:** any trade beyond the level. Fast, but many wicks reverse immediately. 2. **Candle close:** the candle must close beyond the level. Slower, filters more false breaks. 3. **Displacement:** a strong, large candle that closes well beyond the level, showing conviction. See [Displacement](https://learn.tradelabsai.com/smart-money/displacement/). Many traders require a close beyond the level on their chosen timeframe. A wick through the level that closes back inside is often a liquidity sweep rather than a true break. See [Liquidity Sweeps and Stop Hunts](https://learn.tradelabsai.com/smart-money/liquidity-sweeps-and-stop-hunts/). **Example: A bullish break of structure** In an uptrend on the 1 hour chart, the last swing high is $2,450 and the last higher low is $2,390. Price rallies and a strong candle closes at $2,468, well above $2,450. That close confirms a BOS: the uptrend continues. The new protected low becomes the base of the move that broke the high, around $2,415. ## Trading after a BOS A break of structure is usually not the best place to enter, because price is extended. Common approaches: - **Wait for a pullback** after the break into an area such as the broken level (now possible support), an order block or a fair value gap, then enter with a stop below the new protected low. See [Order Blocks](https://learn.tradelabsai.com/smart-money/order-blocks/) and [Fair Value Gaps](https://learn.tradelabsai.com/smart-money/fair-value-gaps/). - **Enter on the break** with momentum, accepting a worse price and wider stop, often with smaller size. - **Trail stops** behind each new protected swing as the trend makes successive breaks. ## Internal vs external BOS A break of a minor, internal swing is far less significant than a break of a major, external swing. In smart money terminology, traders often separate internal BOS, used for timing, from external or swing BOS, used for direction. See [Internal vs External Structure](https://learn.tradelabsai.com/price-action/internal-vs-external-structure/). ## When a BOS fails Sometimes price breaks a high, then quickly reverses and breaks the protected low. That failed continuation is a strong reversal signal, because traders who bought the breakout are now trapped. See [Failed Breakouts and False Breaks](https://learn.tradelabsai.com/price-action/failed-breakouts/) and [Structural Failure](https://learn.tradelabsai.com/price-action/structural-failure/). ## Common mistakes - **Treating every wick above a high as a BOS,** without waiting for confirmation. - **Buying immediately after a large breakout candle,** with a stop far away and poor reward to risk. - **Mixing timeframes:** a BOS on the 1 minute chart says little about the 4 hour trend. - **Forgetting the protected low:** after each BOS, the swing low that started the move becomes the level that must hold. ## Frequently asked questions ### What is a break of structure in trading? When price breaks beyond the most recent swing high in an uptrend, or swing low in a downtrend, confirming the trend is continuing. ### Should a BOS be confirmed by a candle close? Many traders require a close beyond the level to filter out wicks that quickly reverse, but rules vary. ### What is the difference between BOS and CHoCH? BOS breaks structure in the trend's direction; CHoCH breaks it against the trend, hinting at a possible reversal. Next, learn the early warning of a reversal in [Change of Character](https://learn.tradelabsai.com/price-action/change-of-character/). ## Continue learning - Next lesson: [Change of Character](https://learn.tradelabsai.com/price-action/change-of-character/) - Previous lesson: [Multi-Timeframe Analysis](https://learn.tradelabsai.com/price-action/multi-timeframe-analysis/) - Related: [Multi-Timeframe Analysis](https://learn.tradelabsai.com/price-action/multi-timeframe-analysis/): Multi-timeframe analysis uses a higher timeframe for direction and a lower one for entries. Learn a simple three timeframe method, ratios and common pitfalls. - Related: [Change of Character](https://learn.tradelabsai.com/price-action/change-of-character/): A change of character is the first break of structure against the trend. Learn how to identify a CHoCH, confirm it and trade potential reversals safely. - Related: [Trend Structure: Higher Highs and Lower Lows](https://learn.tradelabsai.com/price-action/higher-highs-and-lower-lows/): Uptrends make higher highs and higher lows; downtrends make lower highs and lower lows. Learn to read trend structure, spot weakening trends and trade with it. - Related: [Market Structure Basics](https://learn.tradelabsai.com/price-action/market-structure-basics/): Market structure is the pattern of highs and lows that shows whether price is trending or ranging. Learn to read it, mark it and use it to plan trades. - Related: [Internal vs External Structure](https://learn.tradelabsai.com/price-action/internal-vs-external-structure/): External structure is the major swing range; internal structure is the smaller swings inside it. Learn how to tell them apart and use both to time trades. - Related: [Breakouts](https://learn.tradelabsai.com/price-action/breakouts/): A breakout is when price moves decisively beyond support, resistance or a pattern. Learn signs of a real breakout, entry methods, stops and how to avoid fakeouts. - Related: [Smart Money Concepts Explained](https://learn.tradelabsai.com/smart-money/smart-money-concepts-explained/): Smart money concepts describe how large players may leave footprints in price. Learn the core ideas, the vocabulary, what is classic price action and the limits.