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Break of Structure (BoS) definition
A close through the prior swing point in the direction of the trend, confirming continuation.
This page is the short definition. For rules, worked NQ examples and invalidation, read the full Break of Structure (BoS) guide.
What it means in ICT
ICT separates BoS (continuation with the trend) from MSS (the first break against it), and both require displacement to count.
NQ example
In a bullish NQ morning, each 1-minute close above the last swing high is a BoS, and the FVG left behind is the next long entry.
Related guides
Practice Break of Structure in replay
Load a historical NQ session and watch for break of structure bar-by-bar, with ICT overlays drawn automatically.
Data & methodology
All NQ and MNQ examples use Databento GLBX.MDP3 1-minute OHLCV candles for continuous front-month E-mini Nasdaq-100 futures, aggregated to higher timeframes (5m, 15m, 1h, 4h, 1D, 1W) so every bar agrees across timeframes. Sessions cover the full CME Globex day, 18:00–17:00 ET. ICT overlays are drawn algorithmically from the same price data used in the replay trainer.