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Structure Mapping in SMC

Sep 7, 2025

Overview

This lecture introduces the concept of structure mapping in SMC (Smart Money Concepts), focusing on its main components: Break of Structure (BOS), Change of Character (Choch), and Inducement (IDM), as well as methods for identifying market trends and key points on price charts.

Structure Mapping Components

  • Structure mapping is based on three main points: Break of Structure, Change of Character, and Inducement (IDM).
  • These three components combine to form the foundation of analyzing price movement in SMC.

Break of Structure (BOS)

  • BOS occurs when price in an uptrend breaks previous highs repeatedly, confirming trend continuation.
  • In a downtrend, BOS is when price breaks previous lows, also confirming trend continuation.
  • BOS marks the continuation pattern in both uptrends and downtrends.

Change of Character (Choch)

  • Choch happens when the trend reverses, such as breaking a higher low in an uptrend or a lower high in a downtrend.
  • Choch marks the turning point and signals a trend reversal.

Inducement (IDM)

  • IDM is the first internal swing to the left of a new high or low, confirming the validity of a higher high or lower low.
  • IDM helps identify the correct swing points for marking BOS and Choch on the chart.

Marking and Validating Structure

  • Higher highs and higher lows are only confirmed after specific IDM swings and BOS.
  • Always confirm swing points using left-side swings, not right-side swings.
  • Body closing is necessary for confirming BOS and Choch but not for IDM swings.

Valid and Invalid Swings

  • Valid swings require price to grab liquidity (break the high/low of the previous candle) and close with the body above or below that point.
  • There are six valid and six invalid swing patterns; valid ones involve clear body closings after liquidity grabs.
  • Invalid swings include inside bars not breaking highs/lows, or candles without body closes after grabs.

Structure Mapping in Practice

  • Begin structure mapping from the most significant high or low on a higher time frame by zooming out on the chart.
  • Mark each swing with IDM, BOS, and Choch for trend analysis.
  • Always prioritize the nearest left swing for IDM and Choch identification.
  • Ignore swings that do not meet body close or liquidity grab criteria.

Key Terms & Definitions

  • Break of Structure (BOS) β€” When price breaks previous highs (uptrend) or lows (downtrend), confirming continuation.
  • Change of Character (Choch) β€” Point at which trend reverses, breaking a key higher low or lower high.
  • Inducement (IDM) β€” The first minor swing before a new high/low, confirming the swing’s validity.
  • Liquidity Grab β€” When price breaks the high/low of the previous candle to gather orders.
  • Inside Bar β€” A candle completely within the range of the previous candle, often ignored for IDM.
  • Valid Swing β€” A swing where the price grabs liquidity and body closes beyond the grab point.
  • Invalid Swing β€” A swing not meeting liquidity or closing criteria, often with inside bars.

Action Items / Next Steps

  • Practice identifying BOS, Choch, and IDM in live charts on higher and lower timeframes.
  • Review and list valid and invalid swing patterns from your charts.
  • Prepare to study order blocks and advanced SMC concepts in the next lecture.