Technical & Chart AnalysisS and D zones
Supply and Demand
A zone-based method that marks areas where price previously left abruptly, on the assumption that unfilled institutional orders remain there.
What Supply and Demand means
Supply and demand trading marks rectangular zones rather than single lines. A demand zone is drawn at a base of small candles from which price rallied sharply; a supply zone is drawn where price fell away sharply. The premise is that a large participant could not fill an entire order at one price, so unexecuted interest remains in that area and price may react when it returns. Zones are commonly classified by the shape of the departure, using labels such as drop-base-rally or rally-base-drop.
Traders place limit orders at the zone edge with a stop beyond its far side, which can produce a small stop relative to the target if the zone is tight. Zones are generally considered strongest on their first retest and weaker each time price revisits them. The honest limitation is that this is a discretionary framework with no academic validation: the presence of resting institutional orders is inferred, never observed, in decentralised spot FX, and different traders will draw noticeably different zones on the same chart.
Worked example
USD/JPY consolidates between 151.60 and 151.80 then rallies 120 pips. That base becomes a demand zone, and a trader might bid 151.80 on the first return with a stop below 151.55.
Related terms
- SupportA price area where buying interest has previously been strong enough to halt or reverse a decline.
- ResistanceA price area where selling interest has previously been strong enough to stop or reverse an advance.
- Order BlockA candle or small cluster identified as the origin of a strong directional move, treated as a likely area of institutional interest.
- Price ActionAn approach that reads raw price movement, candle structure and levels directly, with few or no derived indicators on the chart.
- ConsolidationA phase of sideways, low-range trading in which price pauses and volatility contracts before the next directional move.
Frequently asked questions
What does Supply and Demand mean in forex trading?
A zone-based method that marks areas where price previously left abruptly, on the assumption that unfilled institutional orders remain there.
How does Supply and Demand work in practice?
Traders place limit orders at the zone edge with a stop beyond its far side, which can produce a small stop relative to the target if the zone is tight. Zones are generally considered strongest on their first retest and weaker each time price revisits them. The honest limitation is that this is a discretionary framework with no academic validation: the presence of resting institutional orders is inferred, never observed, in decentralised spot FX, and different traders will draw noticeably different zones on the same chart.
What is an example of Supply and Demand?
USD/JPY consolidates between 151.60 and 151.80 then rallies 120 pips. That base becomes a demand zone, and a trader might bid 151.80 on the first return with a stop below 151.55.
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