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Order Block definition
The last opposing candle before a strong displacement move; treated as a demand or supply zone.
This page is the short definition. For rules, worked NQ examples and invalidation, read the full Order Block guide.
What it means in ICT
Order blocks represent where institutional orders rested before the move. A retest of the block is expected to hold unless the structure is broken.
NQ example
Before a 50-point NQ rally, the final bearish 5-minute candle that was engulfed becomes the bullish order block to buy on retest.
Related guides
Practice Order Block in replay
Load a historical NQ session and watch for order block 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.