What is an Order Block in Trading?
An Order Block is the last down-close candle before a strong bullish displacement (bullish OB), or the last up-close candle before a bearish displacement (bearish OB). It marks the origin point where institutions placed large limit orders that could not be fully filled in one move. When price returns to an Order Block, the remaining institutional orders trigger, causing price to violently reject the zone. The most common frustration — "my order block keeps getting blown through" — occurs because most traders identify OBs without requiring a preceding liquidity sweep and a Fair Value Gap in the displacement, both of which confirm genuine institutional involvement.
Key Stat: The highest-probability Order Blocks share two characteristics: they are formed after a liquidity sweep (stop run), and the impulsive move away from them leaves a Fair Value Gap.
Order Blocks are one of the most foundational concepts in Smart Money Concepts (SMC) and ICT trading.
They represent the precise areas where large financial institutions, banks, and hedge funds have accumulated massive positions.
By identifying these zones, retail traders can trade alongside the "smart money" instead of against it.
The Definition of an Order Block
Simply put, a Bullish Order Block is the last down-close candle before a strong impulsive move upwards that breaks market structure. Conversely, a Bearish Order Block is the last up-close candle before a strong impulsive move downwards.
When institutions enter the market, their orders are so large they cannot be filled all at once without causing massive slippage.
They split their orders, often leaving a portion unfilled at the origin of the move. When price eventually returns to this origin—the Order Block—those remaining orders are triggered, causing price to violently reject the zone.
How to Trade an Order Block
Not all Order Blocks are created equal. The highest probability Order Blocks share two distinct characteristics:
- They sweep liquidity first: The best Order Blocks are formed after a Liquidity Sweep, trapping retail traders on the wrong side of the market.
- They are accompanied by an FVG: The impulsive move away from the Order Block must leave a Fair Value Gap. This confirms the displacement and institutional involvement.
When price returns to an Order Block that meets these criteria, traders can enter their positions with tight stop losses placed just below (or above) the Order Block candle itself, resulting in excellent risk-to-reward ratios.
Related Reading:
To master Order Blocks, you must master the imbalances they leave behind. Read our guide on What is a Fair Value Gap? to complete your strategy.
Find Institutional Footprints Automatically
Stop guessing where the real Order Blocks are. HSKY Suite highlights high-probability Institutional Order Blocks directly on your TradingView chart.
Get HSKY Suite Today