ICT IRL vs ERL — Internal and External Range Liquidity Explained
Understanding the difference between Internal Range Liquidity and External Range Liquidity is how ICT traders define the hierarchy of targets within any dealing range — from the imbalances inside the range to the swing extremes beyond it.
Internal Range Liquidity (IRL) and External Range Liquidity (ERL) form the target hierarchy within any ICT dealing range. IRL targets are inside the range — the FVGs, OBs, and imbalances that price delivers to during retracements. ERL targets are outside the range — the swing highs and lows beyond the range boundaries that represent the algorithm's ultimate delivery destinations. Mastering the IRL/ERL framework gives you a complete map of every trade's target structure before you enter.
Defining the Dealing Range
A dealing range is any defined price range bounded by a significant swing high (the top of the range) and a significant swing low (the bottom of the range). The boundaries of the range are the External Range Liquidity levels — the swing high holds Buy-Side Liquidity (BSL) above it, and the swing low holds Sell-Side Liquidity (SSL) below it.
Within the range, between the high and the low, sits the Internal Range Liquidity — all the PD Arrays (FVGs, OBs, BPRs, etc.) that were created as price moved from one extreme of the range to the other. These internal elements are the retracement targets and entry zones within the range.
How Price Moves Between IRL and ERL
Price delivery follows a predictable pattern within the IRL/ERL framework. The algorithm moves price from an ERL level (a swing extreme) through the range, hitting IRL targets (FVGs and OBs) along the way, until it reaches the opposite ERL level (the other swing extreme). Then it may reverse from the ERL and begin delivering back through the range in the opposite direction, again hitting IRL targets.
Understanding this cycle tells you where you are in the delivery sequence. If price has just swept an ERL (taken a swing high) and is now retracing, it is in an IRL delivery phase — targeting the FVGs and OBs inside the range. Once those internal elements are hit, price will resume toward the opposite ERL. Your trade targets change depending on which phase you are in: IRL targets during retracements, ERL targets during the primary delivery phase.
Practical IRL/ERL Application
- diamondMark your dealing range: identify the most recent significant swing high (BSL/ERL) and swing low (SSL/ERL) on your working timeframe.
- diamondMark all IRL elements within the range: FVGs (bullish and bearish), Order Blocks, Mitigation Blocks, BPRs, and opening gaps (NWOG/NDOG).
- diamondDetermine which phase you are in: has price recently swept the ERL and is now in a retracement (IRL delivery phase)? Or has price recently hit an IRL target and is now resuming toward the ERL (ERL delivery phase)?
- diamondIn an IRL delivery phase: target the FVGs and OBs inside the range. These are your take-profit levels.
- diamondIn an ERL delivery phase: target the swing high or swing low beyond the current range. These are your take-profit levels.
- diamondFor entries: enter at IRL elements (FVGs/OBs) when in an ERL delivery phase — you are buying the retracement within a continuation move.
IRL First, Then ERL — The Sequence
A crucial ICT rule: price almost always delivers to IRL targets first before reaching the ERL. When you identify a bullish daily bias targeting the previous week's high (ERL), price will not go directly there in a straight line. It will first hit internal FVGs and OBs (IRL) along the way. Understanding this means you do not set your stop just below your entry and target the ERL directly from the start — you manage the trade to give price room to hit the IRL targets while keeping the ERL as your full profit target.
The IRL/ERL framework is the solution to the most common ICT targeting problem: "I was right about the direction but took profit too early." By identifying all the IRL targets between your entry and the ERL, you can plan your partial profit-taking at each IRL while running a portion of the position to the full ERL target. This is how ICT traders capture the full range of a delivery rather than exiting at the first touch of any resistance.