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Price action

Supply and demand zones:where price left in a hurry.

A supply zone is an area price fell away from sharply, where traders expect unfilled selling interest; a demand zone is an area price rallied away from sharply, where they expect unfilled buying interest. Zones are drawn around the base before the move. They mark where traders expect a reaction, not where one will happen.

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What supply and demand zones are

The names come from the economic model, but the trading use is narrower. The reasoning is that a sharp move away from a small area means orders there were not all filled, so price may react if it returns. Whether any orders actually remain cannot be seen on a chart; the zone is an inference from the shape of the move.

The difference from support and resistance is emphasis. Support and resistance come from repeated turns at a level; supply and demand zones come from a single strong departure, and are often considered strongest before price has returned to them at all.

The four base patterns

Zones are usually classified by the move into and out of the base - the small cluster of candles where price paused.

Common base patterns
PatternMove inMove outZone type
Rally-base-dropUpDownSupply (reversal)
Drop-base-dropDownDownSupply (continuation)
Drop-base-rallyDownUpDemand (reversal)
Rally-base-rallyUpUpDemand (continuation)

Fresh vs tested zones, and order blocks

A fresh zone is one price has not returned to since it formed; each return is expected to use up some of the remaining orders, so many traders give less weight to a zone after each test. That is a convention, not a measured property.

The SMC order block is a close relative: it marks the last opposing candle before the move, where a supply or demand zone usually marks the whole base. The two often overlap on the same chart.

Step by step

How to identify it

Start from the move, not the zone: find where price left quickly, then mark where it left from.

  1. Find a strong, fast move - several large-bodied candles with little overlap.
  2. Go back to the small base of candles immediately before it.
  3. Mark the zone from the base's extreme wick to the edge of its bodies, or by your chosen convention.
  4. Classify it by the move in and out: rally-base-drop, drop-base-rally and so on.
  5. Note whether the zone is fresh or has been tested, and where a close through it would invalidate it.

Worked example

The concept,walked through

A demand zone, described

An illustrative sequence in words, with round numbers standing in for price. It is not taken from any real instrument or date.

  1. 1. DropPrice falls from 110 to 102 over a morning.
  2. 2. Base and rallyIt pauses for three small candles between 101 and 102.4, then rallies to 109 in two large candles.
  3. 3. ZoneThe trader marks a drop-base-rally demand zone from 101 to 102.4.
  4. 4. ReturnTwo days later price falls back into the zone for the first time.

The zone told the trader where to look and where the idea would be wrong - a close below 101. It did not tell them whether price would turn up from it.

Common mistakes

Where tradersgo wrong

Marking zones from slow moves

The logic depends on a sharp departure. A slow drift away from an area is not evidence of unfilled orders.

Making zones too wide

A zone wide enough to always contain the reaction also needs a stop too wide to size sensibly.

Ignoring the higher timeframe

A lower-timeframe demand zone inside a higher-timeframe supply zone is a conflict, not a setup.

Limitations

What it cannottell you

No chart concept predicts price. These are the limits worth keeping in view.

  • Unfilled orders cannot be observed; the zone is an inference from price, and many zones never produce a reaction.
  • There is no published evidence that supply and demand zones predict price; results depend on the trader's rules and are easy to overfit.

In an evaluation

Using it on asimulated account

Zone trades usually place the stop beyond the far edge of the zone. On a $100,000 account, with a daily loss limit of $3,000 on Instant or $5,000 on 1 Step and 2 Step, size from that distance first - risking $500 leaves room for several zones to fail in one day.

Trading rule

What is the daily loss limit?

The ceiling on a day's losses - 3% on Instant and 5% on 1 Step and 2 Step.

Trading rule

Is there a maximum lot size?

How size is bounded on a simulated account.

Trading rule

What is maximum drawdown?

The overall floor, measured on equity.

Questions

Asked aboutthis concept

A supply zone is where price fell away sharply and selling interest may remain; a demand zone is where price rallied away sharply and buying interest may remain.

They are close relatives. An order block is usually the last opposing candle before a strong move; a supply or demand zone usually covers the whole base the move left from.

Keep learning

Relatedlessons

Price action and market structure

Support and Resistance, Explained

The levels where price has repeatedly stalled or turned - how to draw them as zones, why broken levels flip roles, and what they cannot tell you.

Smart money concepts (SMC and ICT)

Order Blocks in Trading, Explained

The last down-close candle before a strong rally, or the last up-close candle before a strong drop, marked as a zone of interest.

Price action and market structure

Sideways Market: How to Spot a Range

What a sideways, or ranging, market is, how to recognise one before a trend strategy is used in it, and how traders approach the range and its breaks.

Sources

What this pagerelied on

  1. Supply and demand - Wikipedia. Retrieved 23 September 2026. The economic model the trading vocabulary borrows its names from.
  2. Support and resistance - Wikipedia. Retrieved 23 September 2026. The definitions of support and resistance and the role-reversal principle.

Educational content only, not investment advice or a recommendation to trade. Chart concepts describe what price has done; none of them predicts what it will do, and trading any strategy can lose money. Get Funded Now accounts are simulated and trade virtual funds. Last reviewed 22 September 2026.

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