PD Array ToolsICT Trading EducationArticle 19 of 100
ICT Order Block Trading: What It Is, Examples, and Entry Rules
Before a market makes a significant move, it leaves behind a single candle marking where that move began. That candle is the Order Block — the most foundational PD array tool in the entire ICT framework, and the building block several other concepts in this cluster are built directly on top of.
The Inner Circle Traders
Updated July 2026
11 min read
Cluster: PD Array Tools
Key Takeaways
- An Order Block is the last opposing candle before a significant institutional move
- A bullish Order Block is the final down-candle before a strong rally
- A bearish Order Block is the final up-candle before a strong decline
- A valid Order Block should ideally originate from a genuine HTF liquidity zone, not an arbitrary level
- Order Blocks are most reliable when they line up with daily bias and a clear draw on liquidity
What is an Order Block in Trading?
An Order Block is the last opposing candle before a significant institutional move. In an uptrend, this means the final down-candle immediately preceding a strong rally. In a downtrend, it means the final up-candle immediately preceding a sharp decline. It marks the specific location where institutional orders are believed to have been placed before driving the subsequent displacement.
Simple definition
An Order Block = the single candle, opposite in direction to the move that follows it, that institutions used to build a position before driving price strongly in the new direction.
This is one of the most foundational tools in the entire ICT framework. Several other PD array concepts covered elsewhere in this cluster are built directly on top of it: a Breaker Block is what happens when an Order Block fails and flips direction, and Order Blocks are frequently found alongside Fair Value Gaps on the same displacement move.
Bullish Order Block Example
A bullish Order Block is the final down-candle that forms immediately before a strong rally begins.
Figure 1 — A series of down-candles ends with one final down-candle (the Order Block) immediately before a strong displacement rally upward.
When price later returns to this zone, the Order Block is treated as a potential support area — the location where institutional buying is believed to have originated, and where remaining orders may still be resting.
Bearish Order Block Example
A bearish Order Block is the exact mirror: the final up-candle that forms immediately before a strong decline begins.
Figure 2 — A series of up-candles ends with one final up-candle (the Order Block) immediately before a strong displacement decline downward.
When price later returns to this zone, it is treated as a potential resistance area — the location where institutional selling is believed to have originated.
What Makes a Valid Order Block
It must precede genuine displacement. Not every opposing candle before a move qualifies — the subsequent move needs to show real momentum and conviction (large-bodied candles, often leaving a Fair Value Gap behind), not just a gradual drift.
It should ideally originate from a genuine HTF liquidity zone. An Order Block backed by real higher-timeframe liquidity is a meaningfully stronger signal than one sitting in an arbitrary area with no such backing. See our complete guide to Liquidity Zones for the full HTF vs LTF framework.
Unmitigated Order Blocks are generally stronger. An Order Block that price has not yet returned to test is considered to have more “untapped” institutional interest than one that has already been retested multiple times.
How to Trade an Order Block
Wait for price to return to the Order Block zone. The entry opportunity comes when price retraces back into the candle’s range after the initial displacement move, not at the moment the Order Block itself forms.
Look for confirmation within the zone. A rejection candle, a Fair Value Gap forming inside the Order Block’s range, or a lower-timeframe structural shift all strengthen the case for entry rather than reacting to the raw zone alone.
Place the stop loss beyond the Order Block’s extreme. For a bullish Order Block, this means beyond its low; for a bearish Order Block, beyond its high.
Set the target at the nearest liquidity draw. See our guide to Liquidity Sweeps for how to identify this target.
Order Block vs Other PD Array Tools
It is worth being precise about how an Order Block relates to the other tools covered in this cluster, since they are frequently confused with each other. The Order Block is the originating candle itself. A Fair Value Gap is the imbalance left behind by the displacement move away from that candle — see our full comparison in Fair Value Gap vs Order Block. A Breaker Block is what the Order Block becomes if it later fails and flips direction — see our complete guide to ICT Breaker Block.
Frequently Asked Questions
What Happens When an Order Block Is Mitigated?
Mitigation occurs when price returns to an order block and trades through it, absorbing all the institutional orders that created the block. Once mitigated, the order block loses its significance — the orders that gave it power are now filled. A second return to the same price level no longer has the same institutional backing.
ICT traders mark order blocks as mitigated when price closes beyond the far edge of the block. A bullish order block is mitigated when price closes below its low. A bearish order block is mitigated when price closes above its high. After mitigation, remove the block from your chart — it is no longer actionable.
The practical importance: never re-enter from a mitigated order block expecting the same reaction. Instead, look for the next unmitigated block further away. Fresh, unmitigated order blocks are the highest priority; tested-but-not-broken blocks are second; mitigated blocks are off the list entirely.
Order Block Entry Checklist
A valid ICT order block entry requires all of the following to align. Work through this checklist before every order block trade.
1. HTF bias confirmed. The daily (or weekly, for swing trades) bias must be in the direction of your trade. A bullish order block entry requires bullish higher timeframe context. Trading an OB against HTF bias is significantly lower probability regardless of how clean the setup looks.
2. Displacement followed the order block. The candle you are calling an order block must have been followed by a displacement move — large-bodied candles that broke a structural swing point. Without displacement, it is not an institutional entry point; it is just a candle.
3. Order block is unmitigated. Price must not have already returned to the block and traded through it. If price has visited the block and closed beyond it, the block is mitigated and should not be traded.
4. You are entering in the discount (bullish) or premium (bearish). Bullish OB entries should be in discount relative to the dealing range. Bearish OB entries should be in premium. An OB at the wrong premium/discount position is a lower-quality setup.
5. Kill zone timing. Enter from order blocks during active session windows — London open, New York open, or Silver Bullet windows. Order blocks tested during dead hours (Asian session range, lunch) produce weaker reactions.
When to Choose an Order Block Over an FVG
Both the order block and the Fair Value Gap within the displacement move are valid entries. The order block is the last candle before the displacement. The FVG sits above the order block (for bullish setups) within the displacement itself. Which should you choose?
Choose the order block when you want the deepest possible entry with the tightest stop. The OB sits lower in a bullish setup, giving you a stop below its low that is usually tighter than a stop below an FVG low. The tradeoff: price may not retrace all the way to the OB and you may miss the move if price turns from the FVG first.
Choose the FVG when you want higher probability of actually getting filled. The FVG sits closer to current price in most retracements — price is more likely to reach it. The tradeoff: your stop is slightly larger because the FVG low is higher than the OB low.
The highest-probability approach: enter at the FVG with a larger position, then add at the OB if price reaches it. This scales into the trade at both levels and keeps the average entry at a discount while capturing the FVG fill probability.
Order Block Psychology: Why the Reaction Occurs
Understanding why order blocks produce reactions gives you deeper conviction when trading them. The institution that placed buy orders at the bullish OB (the last bearish candle before the bullish displacement) is now in a profitable long position as price has moved away. When price returns to the OB, the institution has two motivations: adding to the position at the same price they entered originally (scale-in buying), and defending the level to prevent price from closing below it and putting the existing position into drawdown.
Both motivations produce buying at the OB level. The institution buys on the first revisit to protect and potentially add to its position. This defensive and additive buying is what creates the observable reaction at the OB — it is not arbitrary support; it is the direct result of institutional self-interest in defending a level where a large position was built. When you trade a bullish OB re-test, you are aligning with that institutional defensive buying rather than trading against it.
Watch: ICT Order Block in Trading: What It Is, Examples, and Entry Rules
Original ICT teaching on this concept from the Inner Circle Trader YouTube channel.
What is an order block in trading?+
An order block in trading is the last opposing candle before a significant institutional price move. In an uptrend, it is the final down-candle before a strong rally; in a downtrend, it is the final up-candle before a sharp decline. It marks the zone where institutional orders are believed to have originated.
What is an order block?+
An order block is a single candle on a price chart — opposite in direction to the move that follows it — that represents the zone where institutions are believed to have built a position before driving price strongly in a new direction. It is one of the most foundational tools in ICT trading.
What is a bullish order block?+
A bullish order block is the final down-candle that forms immediately before a strong upward rally. When price returns to this zone, it is treated as a potential support area where institutional buying interest may still be present.
What is a bearish order block?+
A bearish order block is the final up-candle that forms immediately before a strong downward decline. When price returns to this zone, it is treated as a potential resistance area where institutional selling interest may still be present.
How do you trade an order block?+
Wait for price to retrace back into the Order Block's range after the initial displacement move, look for confirmation such as a rejection candle or Fair Value Gap within the zone, place the stop loss beyond the Order Block's extreme, and set the target at the nearest liquidity draw.
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