# Order Blocks > An order block is the last opposite candle before a strong move, seen as a zone where large orders entered. Learn the rules, valid vs invalid blocks and entries. Source: https://learn.tradelabsai.com/smart-money/order-blocks/ Track: Smart Money Concepts · Level: Intermediate · Updated: 2026-10-03 Publisher: TradeLabs AI (https://tradelabsai.com). Education, not financial advice. Cite as: TradeLabs Learn, "Order Blocks", https://learn.tradelabsai.com/smart-money/order-blocks/ An order block is a price zone where, according to smart money concepts, large institutions placed significant orders before a strong move. In practice, it is usually defined as the last opposite colour candle before a powerful move that breaks structure: the last down candle before a strong rally (a bullish order block) or the last up candle before a strong drop (a bearish order block). Traders expect price to react when it returns to that zone. ## The basic definition *Figure: The last down candle before a strong move up becomes a zone price may react to later.* | Type | Candle | Context | |---|---|---| | Bullish order block | Last down (red) candle before a strong move up | Move breaks structure upward | | Bearish order block | Last up (green) candle before a strong move down | Move breaks structure downward | The zone is usually drawn from the candle's high to its low, or more conservatively from its open to its wick extreme. ## What makes an order block valid Most candles before a move are not meaningful. SMC traders typically require: 1. **Displacement:** the move away from the block is strong and fast, with large candles. See [Displacement](https://learn.tradelabsai.com/smart-money/displacement/). 2. **Break of structure:** the move breaks a recent swing high (bullish) or low (bearish). See [Break of Structure](https://learn.tradelabsai.com/price-action/break-of-structure/). 3. **Imbalance:** the move leaves a fair value gap, showing one sided pressure. See [Fair Value Gaps](https://learn.tradelabsai.com/smart-money/fair-value-gaps/). 4. **Unmitigated:** price has not yet returned to the block since it formed. 5. **Context:** the block aligns with the higher timeframe trend and sits in a discount (lower half) of the range for longs, or premium (upper half) for shorts. ## Trading an order block **Example: A bullish order block entry** On the 1 hour chart, a stock in an uptrend dips to $48.20, prints a red candle from $48.90 to $48.30, then rallies hard with three large green candles to $51.40, breaking the prior high at $50.60 and leaving a fair value gap. The red candle ($48.20 to $48.95 including wicks) is the order block. Two days later, price pulls back into $48.90. A trader buys at $48.85 with a stop at $48.05, targeting the recent high at $51.40 and beyond. Common approaches: - **Limit entry at the block:** place a buy limit at the top of a bullish block or at its midpoint. - **Confirmation entry:** wait for price to reach the block and show a lower timeframe change of character before entering. See [Change of Character](https://learn.tradelabsai.com/price-action/change-of-character/). - **Stop:** beyond the far side of the block. - **Target:** the next liquidity pool, such as the recent high. See [Liquidity in Smart Money Concepts](https://learn.tradelabsai.com/smart-money/smc-liquidity/). ## Order blocks vs supply and demand zones Order blocks are a specific version of the older supply and demand zone concept. Supply and demand traders mark the base area before a strong move; order block traders narrow it to the last opposite candle. The logic, that unfilled orders may remain where a strong move started, is the same. See [Supply and Demand Zones](https://learn.tradelabsai.com/smart-money/supply-and-demand-zones/). ## What happens when an order block fails If price trades through an order block and closes beyond it, the block is invalidated. In SMC, a failed order block can become a **breaker block**, which then acts in the opposite role. See [Breaker Blocks](https://learn.tradelabsai.com/smart-money/breaker-blocks/). ## A realistic view Order blocks are easy to find on past charts because you can see which ones worked. In real time, many candles look like potential order blocks and most are never respected. The useful parts are the requirements for displacement, structure and location, which filter out weak zones. Test precise rules on a large sample rather than trusting hand picked examples. ## Common mistakes - **Marking every last candle before any move** as an order block. - **Ignoring trend and location;** a bullish block in a downtrend fails often. - **Placing stops too tight** inside the block. ## Frequently asked questions ### What is an order block in trading? A zone, usually the last opposite candle before a strong move, where large orders are believed to have entered and where price may react when it returns. ### How do you identify a valid order block? Look for strong displacement away from it, a break of structure, an imbalance left behind and alignment with the higher timeframe trend. ### Are order blocks the same as supply and demand zones? They are closely related. Order blocks are a narrower, SMC specific way of defining where a strong move began. Next, learn what happens to failed blocks in [Breaker Blocks](https://learn.tradelabsai.com/smart-money/breaker-blocks/). ## Continue learning - Next lesson: [Breaker Blocks](https://learn.tradelabsai.com/smart-money/breaker-blocks/) - Previous lesson: [Market Maker Manipulation: Myth and Reality](https://learn.tradelabsai.com/smart-money/market-maker-manipulation/) - Related: [Market Maker Manipulation: Myth and Reality](https://learn.tradelabsai.com/smart-money/market-maker-manipulation/): Do market makers hunt your stops? Learn what market makers actually do, which forms of manipulation are real and illegal, and what explains moves that feel rigged. - Related: [Breaker Blocks](https://learn.tradelabsai.com/smart-money/breaker-blocks/): A breaker block is an order block that failed and then flips to act in the opposite role. Learn how breakers form after liquidity sweeps and how traders use them. - Related: [Mitigation Blocks](https://learn.tradelabsai.com/smart-money/mitigation-blocks/): A mitigation block forms when price fails to make a new extreme, then breaks structure and returns to the failed zone. Learn how it differs from a breaker block. - Related: [Supply and Demand Zones](https://learn.tradelabsai.com/smart-money/supply-and-demand-zones/): Supply and demand zones mark areas where strong moves started, suggesting unfilled orders. Learn rally base drop patterns, zone quality, freshness and entries. - Related: [Fair Value Gaps](https://learn.tradelabsai.com/smart-money/fair-value-gaps/): A fair value gap is a three candle imbalance where wicks do not overlap after a strong move. Learn how to spot FVGs, why price revisits them and how to trade them. - Related: [Displacement](https://learn.tradelabsai.com/smart-money/displacement/): Displacement is a fast, forceful move with large candles that breaks structure and often leaves a fair value gap. Learn to identify it and why traders rely on it. - 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.