Market Structure Masterclass: 17 BOS & CHOCH PatternsGoldOANDA:XAUUSDFIONA_MARKET_EXPERTMarket Structure Analysis — BOS & CHOCH This educational chart illustrates 17 commonly observed market-structure patterns based on Break of Structure (BOS) and Change of Character (CHOCH). These concepts are widely used by technical analysts to study price action, identify structural shifts, and understand how price behaves around previous highs, lows, liquidity areas, and key levels. 1. Bullish BOS A bullish Break of Structure occurs when price moves above a previously established swing high. This can be interpreted as evidence that bullish structure is continuing. 2. Bearish BOS A bearish BOS occurs when price breaks below a previous swing low, indicating that bearish structure may be continuing. 3. Bullish CHOCH A bullish Change of Character occurs when price breaks a relevant previous lower high. This can indicate a potential transition from bearish structure toward bullish structure. 4. Bearish CHOCH A bearish CHOCH occurs when price breaks a relevant previous higher low, potentially indicating a transition toward bearish structure. 5. Multiple BOS Repeated structural breaks in the same direction can demonstrate sustained directional price movement and developing market momentum. 6. Multiple CHOCH Multiple changes of character can occur during uncertain or consolidating conditions. These situations may require additional confirmation before interpreting a larger structural shift. 7. BOS After CHOCH When a CHOCH is followed by a BOS in the same new direction, the sequence can provide additional structural confirmation. 8. CHOCH After BOS A CHOCH following an established BOS can indicate that the existing directional structure is weakening or potentially transitioning. 9–10. Equal Highs / Equal Lows Equal highs and equal lows can represent areas where liquidity may be concentrated. A subsequent structural break can provide useful information about how price is interacting with those levels. 11. Liquidity Sweep Before BOS Price may temporarily move beyond a previous high or low before reversing and breaking structure. This is commonly referred to as a liquidity sweep. 12–13. BOS / CHOCH With Retest After a structural break, price may return to the previously broken area. A retest can help analysts evaluate whether the broken level is being respected as potential support or resistance. 14–15. Internal Structure Internal BOS and CHOCH refer to smaller structural movements, often observed on lower timeframes. These movements should be considered within the context of the broader market structure. 16–17. Structure Within a Range Markets can remain inside defined ranges for extended periods. A BOS may occur when price breaks beyond the range, while a CHOCH can represent a structural shift occurring within or around the range. Professional takeaway BOS and CHOCH should not be treated as standalone buy or sell signals. Their significance depends on the broader context, including: Higher-timeframe structure Swing highs and swing lows Support and resistance Liquidity areas Market volatility Trading session and market conditions Confirmation from subsequent price action Appropriate risk management Educational Note: This chart is intended solely for technical-analysis education. It does not constitute financial, investment, or trading advice, and no specific trade outcome is implied or guaranteed. Past price behavior does not guarantee future results. Always perform your own analysis and consider your individual risk tolerance before making any trading decision.