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Intermediate
Market Structure
7 min read

Supply and demand zones explained

Demand zoneFast, impulsive departureFirst return — buyers react
A demand zone is the base right before a fast, impulsive move up. The first return to it is where buyers often react again

Supply and demand zones explained

You already understand support and resistance from the Beginner tier — a price level where buyers or sellers previously overwhelmed the other side. Supply and demand zones are a more precise, more institutional way of identifying where that imbalance actually originated.

The key difference from basic support/resistance

Support and resistance is often drawn as a single line or a loosely defined area based on where price simply reversed. A demand zone is specifically the area where a strong, fast, impulsive move up began — the exact range of candles right before price left quickly and aggressively. A supply zone is the same idea in reverse, before a strong move down.

A demand zone isn't "a place price went up from." It's specifically the last area of consolidation or hesitation right before an aggressive, decisive move away — evidence that a large imbalance of buy orders existed there.

Why the origin of the move matters

In the diagram above, notice the zone isn't drawn at the lowest point of the chart — it's drawn around the specific candles right before the strong rally began. The logic: if a large number of buy orders were resting there the first time, creating that explosive move, there's a reasonable chance unfilled orders or similar interest still exists there if price returns.

How to identify a valid zone

Look for these characteristics:

  • A clear, sharp, impulsive move away from the area (not a slow grind)
  • Relatively few candles forming the zone itself — tight consolidation, not a wide sprawling range
  • The first time price returns to that zone after leaving it, since a zone that has already been retested multiple times has likely had more of its original orders absorbed and is considered "weaker"

Why this concept exists between support/resistance and liquidity

Supply and demand zones are a bridge concept. They use the same core logic as support/resistance (an area where one side previously dominated), but add the more specific institutional reasoning — why that area mattered, not just that it mattered. This reasoning is also the foundation for order blocks and liquidity concepts in the Advanced tier, which refine this same idea even further.

A practical note

Like trend lines, drawing supply and demand zones involves some subjectivity — different traders may draw the zone's exact boundaries slightly differently. Treat the zone as an area of interest to watch closely, not a precise line guaranteed to hold.

Key takeaways

  • A demand/supply zone is the specific area where a strong, fast, impulsive move originated — not just any place price reversed
  • Zones should be tight and tied to a sharp departure, not a wide, slow-forming range
  • A zone's first retest is generally considered stronger than later retests, since orders there may already be absorbed
  • Supply and demand builds directly on support/resistance logic and is the foundation for order blocks and liquidity concepts later in the Advanced tier
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