Supply and demand zones are chart areas marked around the origin of a price move. They offer a way to define a trading hypothesis. Candles alone do not reveal unfilled institutional orders or prove that a future revisit will produce a reversal.

Define the Zone Before the Retest

One convention labels the base preceding a sharp rise a demand zone, and the base preceding a sharp fall a supply zone. Specify how many candles form the base, what counts as a sharp departure, and whether the boundaries use bodies or wicks. Different conventions produce different zones.

A zone can only be identified after its required departure has happened. A test that enters inside the base before that departure uses information unavailable at the supposed entry time.

The zone's width should follow your explicit rule and the instrument's price increments. An arbitrary 10–15-pip limit does not transfer across instruments and volatility conditions. Do not redraw a wide zone narrowly just to make the payoff ratio look better.

What the Chart Cannot Establish

A rapid move can occur with changing liquidity and many different participants. It does not establish that a named institution has left orders behind. Orders may be cancelled, replaced or replenished. Neither “fresh zones always hold better” nor “each test consumes a fixed stock of orders” follows from the candles.

Likewise, overlapping daily and intraday zones are related observations of the same market, not independent evidence of a higher win probability. A trend filter or retest-count rule is something to test.

An Illustrative Entry Plan

Suppose a previously recorded EUR/USD zone spans 1.0820–1.0835. Your rule requires a completed rejection candle before considering an entry. A hypothetical entry at 1.0833, stop trigger at 1.0812 and target at 1.0875 gives a 21-pip stop distance and 42-pip target distance, a gross 2-to-1 payoff ratio.

That arithmetic does not show the setup is profitable. The actual entry may differ from the candle close, costs reduce the payoff, and a stop may execute beyond its trigger. See stop-order execution risks for why trigger prices are not guarantees; confirm the exact terms for your FX product.

Size the position from a money budget and unit value. If the permitted minimum quantity exceeds the budget, skip the trade rather than moving the stop to an unrelated level.

Compare Specific Variants

Test a touch entry against a closed-candle entry using the same zone definition and sample. Record zones that never retested and those that failed immediately. Include spread, fees, adverse fills and scheduled-event exposure.

Waiting for a candle changes the entry price and can miss a move; it does not automatically improve expectancy. There is no requirement to advance from chart study to live trading once a pattern feels familiar.

Supply/demand zones overlap with support and resistance. Both need explicit definitions, a loss plan and evidence from more than selected winning examples.

Risk Disclaimer: Trading involves substantial risk of loss. Past performance is not indicative of future results. See our full risk disclaimer.