LiquidityBeginner

Previous Day, Week and Month Highs and Lows (PDH, PDL, PWH, PWL, PMH, PML)

How to mark previous day, week and month highs and lows (PDH, PDL, PWH, PWL, PMH, PML), why traders watch them and how to handle session times.

Library categories

What it means

PDH and PDL are the high and low of the previous trading day. PWH and PWL are the previous week's high and low; PMH and PML the previous month's.

They are objective: everyone using the same session definition gets the same numbers.

Why traders use it

Because they are visible to everyone, these levels attract stops and breakout orders and often produce reactions. Higher-timeframe levels (week, month) usually carry more weight than daily ones.

They also give a simple daily map: is price inside yesterday's range, above it or below it?

Chart examples

PDH and PDL from yesterday's range

YesterdayTodayPDH takenPDHPDL
Yesterday's high and low become today's reference levels; here today trades above PDH.

Day, week and month levels

PMHPWHPDHPDLPWLPML
Daily levels sit inside weekly levels, which sit inside monthly levels. The wider the level, the more it is usually watched.Schematic diagrams drawn to explain the idea; they are not market data.

How to identify it objectively

  • 1Decide the day boundary (for example 00:00 UTC, or the exchange session) and keep it fixed.
  • 2PDH/PDL: the highest high and lowest low of the previous day.
  • 3PWH/PWL: the extremes of the previous calendar week; PMH/PML: of the previous month.
  • 4Track each level's state: untouched, tested, swept or broken.

Bullish use

  • 1Price sweeps PDL and closes back above it.
  • 2Target: PDH, then PWH if PDH breaks and holds.
  • 3A break and hold above PWH signals strength on a higher timeframe.

Bearish use

  • 1Price sweeps PDH and closes back below it.
  • 2Target: PDL, then PWL.
  • 3A break and hold below PWL signals weakness on a higher timeframe.

What confirms it

  • A close back inside after a sweep, or a close beyond with follow-through for a break.
  • Higher-timeframe level agreeing with the daily one.

What invalidates it

  • Using a different day boundary than the one you test with.
  • A clean break that holds beyond the level.

How a hypothetical setup is built

Entry

After a sweep of PDL and a close back above it, enter on the next bullish close.

Stop

Below the sweep low.

Target

PDH, if the reward-to-risk is at least 2:1.

A hypothetical illustration of how the concept is turned into a plan, not a recommendation. Practise it on a paper account first.

Historical testing

The Session Liquidity Playbook uses these levels with real gold examples; no standalone statistics have been published for them.

Limitations: when it fails

  • Different day boundaries give different levels, especially for 24-hour markets like crypto and gold tokens.
  • In trending markets these levels break without reaction.
  • On holiday or weekend sessions ranges can be unrepresentative.

Knowledge check

Pick an answer to see the explanation. Nothing is saved.

Why must the day boundary be fixed?

1. Why must the day boundary be fixed?

Which is usually more significant?

2. Which is usually more significant?

Price sweeps PDH and closes back below. What is a logical target?

3. Price sweeps PDH and closes back below. What is a logical target?

Practise it risk-free

Open the free chart, use replay to go back in time and look for this concept candle by candle with $20,000 in virtual money.