Every morning before the markets open, millions of traders mark the same two levels: yesterday's high and yesterday's low. Breakout traders place buy orders above the PDH. Range traders place short stops just above it. Every retail system that uses "previous day high breakout" as a trigger loads orders at the same price.
That concentration of orders at a single, universally visible level is exactly what makes PDH and PDL valuable in the ICT framework — not as support and resistance to trade from, but as liquidity pools to trade toward and through. The previous day high is buy-side liquidity. The previous day low is sell-side liquidity. Understanding which one is the target each morning, and what happens in the aftermath of the sweep, is the foundation of intraday ICT analysis.
This guide covers what PDH and PDL are precisely, how they form as liquidity pools, how to use them for daily bias confirmation, how they interact with the Judas Swing and AMD sequence, the multi-day PDH/PDL stack, the exact entry and trade mechanics after a sweep, and a complete GBP/USD walkthrough.
What PDH and PDL Are
The Previous Day High (PDH) is the highest price reached during the prior trading day, measured from midnight to midnight New York time. The Previous Day Low (PDL) is the lowest price of the same 24-hour period.
In traditional technical analysis, PDH is treated as resistance — a level the market failed to sustain the day before, and therefore expected to fail again. PDL is treated as support. Traders sell at PDH, buy at PDL, and place their stops just beyond both.
The ICT framework treats them entirely differently. PDH is buy-side liquidity: the cluster of short-seller stops and breakout buy orders that sit just above yesterday's high. PDL is sell-side liquidity: the cluster of long-side stops and breakout sell orders that sit just below yesterday's low. Neither level is expected to hold. Both are expected to be swept — the question is which one, and when.
The distinction matters enormously for how you approach each day. If PDH is resistance, you sell it. If PDH is buy-side liquidity, you watch for a sweep above it before taking a short. The setup looks superficially the same — both result in a short near PDH — but the ICT version has an entirely different entry trigger, a tighter stop, and a defined reason for the reversal.
Why PDH and PDL Are Consistently Targeted
PDH and PDL are the most widely visible and universally marked levels on any intraday chart. Every retail trader, every algorithmic system, every breakout strategy references the same two levels each morning. The result is an extraordinarily dense concentration of orders on both sides of each level.
Above the PDH: short-seller stops (from traders who sold resistance yesterday or overnight), pending breakout buy orders (from traders waiting for a confirmed new high), and buy-stop orders from momentum systems. All of these become buy orders when the PDH is exceeded.
Below the PDL: long-side stops (from traders who bought support yesterday), pending breakout sell orders (from traders waiting for a new low), and sell-stop orders from short-side momentum systems. All become sell orders when the PDL is broken.
Institutions need this order flow. When they need to fill a large sell position, they need buyers — and PDH is where the buyers are concentrated. They push price above PDH, trigger all those buy orders, sell into them, and reverse. The sweep provides the liquidity; the reversal is the trade. The same applies at PDL for institutional buying.
This is why PDH/PDL sweeps are so consistent and so clean: the concentration of orders is maximum, the institutional benefit of sweeping is maximum, and the aftermath is predictable. More stops = more fuel for the reversal.
The Three Roles PDH and PDL Play
PDH and PDL serve three distinct functions in ICT analysis, and all three should be understood before the session opens each morning.
Role 1 — Target for the day's Judas Swing. In the Power of Three framework, the manipulation phase (the Judas Swing) almost always targets either the PDH or the PDL. If the daily bias is bearish, the Judas Swing typically sweeps the PDH (buy-side liquidity) before reversing lower for the distribution phase. If the bias is bullish, the Judas Swing typically sweeps the PDL before reversing higher. PDH and PDL are therefore the first thing to check when determining where the Judas Swing will go each morning.
Role 2 — Internal range liquidity (IRL) target. In the ICT draw on liquidity framework, the PDH and PDL are Internal Range Liquidity — the nearest available liquidity draws within the current week's dealing range. Before price can reach the External Range Liquidity (the weekly high or low), it typically passes through the PDH or PDL first. In your pre-session analysis, PDH is the first bullish target (for a bullish bias day) and PDL is the first bearish target, before the wider weekly draws are considered.
Role 3 — Reference range for the current day's premium and discount. The PDH and PDL together define the prior day's trading range. The midpoint of that range — (PDH + PDL) ÷ 2 — is the prior day's equilibrium. Price above that midpoint is in the premium zone of the prior day's range; below it is in discount. This provides an additional premium/discount filter that supplements the weekly and daily dealing range analysis covered in the premium and discount guide.
Before every London open: mark the PDH and PDL with horizontal lines. Determine the daily bias. If bias is bearish, PDH is the Judas Swing target — watch for a sweep there in the first hour. If bias is bullish, PDL is the target. The lines stay active until swept. Once swept, the level is consumed liquidity — remove it or reclassify it.
The Multi-Day PDH/PDL Stack
On most days, the most important PDH/PDL is from the prior day. But when two or three consecutive days' highs or lows cluster at approximately the same level, the resulting liquidity pool is substantially denser — the equivalent of equal highs or equal lows formed across multiple sessions.
A two-day PDH stack — Monday's high at 1.2845 and Tuesday's high at 1.2848 — creates a buy-side cluster that is nearly twice as dense as a single PDH. Short sellers from both days have stops above 1.2850. Breakout buyers from both days are waiting for the same breakout. When this level gets swept, the reaction is proportionally sharper.
In practice, mark the prior two or three days' highs and lows each morning. When they cluster within 10 pips of each other, treat the cluster as a single, enhanced liquidity pool. The tighter the cluster, the more powerful the sweep reaction will be.
The inverse also matters: a PDH cluster that has already been tested multiple times without being swept is progressively building liquidity with each failed test. A PDH that has been touched three times and held three times has an enormous stop cluster above it — the sweep when it finally comes will be significant, and the reversal from it will be fast and sustained.
Entry, Stop and Targets After a PDH/PDL Sweep
The trade mechanics after a PDH or PDL sweep follow the same sequence as any equal high/low sweep — but with the specific characteristics of the PDH/PDL level in mind.
Entry: Wait for the sweep to complete — a wick above PDH (or below PDL) that closes back inside the prior day's range. Then wait for the market structure shift on the 5-minute or 15-minute chart. After the MSS, look for the entry trigger: a bearish FVG, bearish order block, or BPR on the retrace. Enter at the 50% CE of the trigger zone.
Stop loss: Above the highest wick of the PDH sweep candle for shorts. Below the lowest wick of the PDL sweep candle for longs. The stop must be beyond the sweep extreme — not at the PDH level itself. If price trades back above the sweep wick, the liquidity was not sufficient for a reversal and the move may continue.
First target (T1): The opposing PDH or PDL level. After sweeping PDH and going short, the PDL is the first internal target. After sweeping PDL and going long, the PDH is the first internal target. This is the most consistent T1 in ICT intraday trading — price regularly delivers from PDH to PDL or vice versa within the same session.
Second target (T2): External range liquidity — the current week's high or low, prior week's high or low, or any significant multi-day swing extreme beyond the PDH/PDL range. This is the T2 that extends into the following session if the daily bias and weekly draw support it.
| Element | After PDH Sweep (Short) | After PDL Sweep (Long) |
|---|---|---|
| Confirmation | Wick above PDH, body closes below | Wick below PDL, body closes above |
| MSS required | Bearish MSS on 5M/15M | Bullish MSS on 5M/15M |
| Entry trigger | Bearish FVG, OB, or BPR on retrace up | Bullish FVG, OB, or BPR on retrace down |
| Entry price | 50% CE of trigger zone | 50% CE of trigger zone |
| Stop loss | Above PDH sweep wick high | Below PDL sweep wick low |
| First target (T1) | PDL — prior day's low (SSL) | PDH — prior day's high (BSL) |
| Second target (T2) | External range: weekly low, prior week low | External range: weekly high, prior week high |
PDH/PDL vs Asian Session High/Low
These two concepts are frequently confused because they often reference similar levels. The distinction is important.
The PDH and PDL span the full 24-hour prior day (midnight to midnight NY time). The Asian session high and low span only the Asian session portion of the prior or current day — approximately 8 PM to midnight ET. The Asian session high/low is always a subset of the PDH/PDL range.
In practice: on most days, the PDH was formed either during the prior London session or the prior NY session — not during the Asian session. The Asian session high/low represents only the overnight consolidation range, which is typically much tighter than the full day's range.
For London open analysis, the Asian session high and low are the more immediate targets for the Judas Swing — the London open sweeps the Asian range first, before potentially continuing to the PDH or PDL. For the full-day bias context and the day's primary draw on liquidity, the PDH and PDL take precedence.
The practical hierarchy: Asian high/low = immediate target for the London Judas Swing and first draw. PDH/PDL = day's primary liquidity reference and first internal draw for the broader session. The Asian session high/low sweep is often the setup — the PDH or PDL beyond it is often the real target.
PDH/PDL as a Confluence Layer
PDH and PDL become more powerful as a confluence layer when they overlap with other ICT PD arrays at the same price level.
PDH + Order Block. When the PDH is at the same level as a bearish order block from the prior session, the OB provides the structural reason for the reversal while the PDH provides the liquidity. This is one of the cleaner setups in intraday ICT — the sweep of PDH into a bearish OB zone triggers the entry, with stop above the OB wick and target at PDL.
PDH + FVG. A bearish FVG sitting at the same price as the PDH means the retrace into the FVG to fill the imbalance coincides with the PDH sweep entry. The FVG's 50% CE becomes the entry price within the PDH zone.
PDH + Equal Highs. When the PDH aligns with equal highs from the current or prior session, the stop cluster above both levels is doubled — two groups of short sellers have stops there. The sweep is more powerful, the reversal sharper. Mark both levels and treat the overlap as a single, enhanced liquidity pool.
PDH + Premium zone. A PDH that sits in the premium zone of the weekly dealing range provides the most complete bearish confluence: the PDH sweep takes buy-side liquidity in the zone where institutions are already positioned to sell. The trade aligns with institutional pricing preferences at multiple timeframes simultaneously.
Full Trade Walkthrough — GBP/USD PDH Sweep
Here is a complete PDH sweep trade on GBP/USD, traced from the prior evening's reference marking through exit.
Sunday evening preparation: Mark Monday's reference levels. The prior week's Friday range: high 1.28640 (PDH), low 1.27980 (PDL). Weekly bias for Monday is bearish — price is above the weekly equilibrium and the draw is the cluster of equal lows at 1.27730 from the prior week.
Monday Asian session: GBP/USD consolidates between 1.28280 and 1.28420. The Asian range high is 42 pips below the PDH at 1.28640. The PDH is the primary buy-side liquidity target for the London open Judas Swing.
London open — 2:08 AM EST: Price begins rallying from the Asian range low. By 2:44 AM, it reaches 1.28580 — approaching the PDH. At 2:51 AM, a strong bullish candle pushes to 1.28668 — 28 pips above the PDH. The sweep wick is clear: close at 1.28622, high at 1.28668. BSL above the PDH has been taken.
MSS at 3:05 AM: A 15-minute swing low at 1.28530 (formed at 2:35 AM) is broken to the downside. Bearish MSS confirmed. A bearish FVG forms between 1.28554 and 1.28598 during the MSS candle.
Entry: Limit short at 1.28576 (50% CE of bearish FVG: (1.28554 + 1.28598) ÷ 2 = 1.28576). Filled at 3:18 AM as price retraces into the FVG zone.
Stop: Above the sweep wick high at 1.28670 — 94 pips above entry.
Targets: T1 at PDL 1.27980 — 596 pips, 6.3R. T2 at equal lows cluster 1.27730 (weekly external draw) — 846 pips. Split 50/50.
Result: T1 hit Monday afternoon NY session — price delivered from PDH to PDL in the same session. T2 hit Tuesday London. Classic AMD delivery: Asian accumulation, London PDH sweep (manipulation), then distribution to PDL and beyond.
Common Mistakes With PDH and PDL
Trading PDH as resistance directly. The most common error: seeing the PDH and placing a limit short at it without waiting for the sweep. You are shorting into the exact level where institutions are about to push price to take buy-side liquidity. Your short becomes their fuel. Wait for the sweep and the MSS.
Not updating the levels daily. PDH and PDL change every day. Using Monday's PDH on Wednesday is useless — the relevant reference for Wednesday is Tuesday's PDH and PDL. Mark fresh levels every morning before London opens. Old levels can be kept as secondary references but should not be the primary focus.
Confusing the PDH with the Asian session high. On days when price peaked during the Asian session, the Asian high and PDH may be the same. But on most days they are different — the PDH from a prior London or NY session will be well beyond the Asian range. Apply the correct level for the context you are analysing.
Missing the multi-day stack. If the prior two or three days' highs cluster within 10 pips of each other, the stop concentration above them is much higher than a single PDH. A two-day or three-day PDH cluster deserves significantly more attention than an isolated daily high. Mark all three prior days each morning.
Taking the first retrace as an entry without the MSS. After the PDH sweep, price may make one or two small retrace candles before the MSS occurs. Entering on the first retrace candle without waiting for the structural confirmation often results in being stopped out by the sweep extension before the real reversal begins. The MSS is non-negotiable — it confirms the sweep is complete.
Frequently Asked Questions
Mark PDH and PDL before every London open. Determine the daily bias. Bearish bias: watch for a Judas Swing above PDH before the distribution short. Bullish bias: watch for a Judas Swing below PDL before the accumulation long. These two levels and this one decision are the foundation of every ICT intraday session.