Rally-Base-Drop and Drop-Base-Rally: Complete Pattern Classification

Supply and demand trading recognizes four base patterns. Knowing which one you are trading changes your bias, your entry timing, and your probability estimate. Misclassifying them is a common source of losses.

The four patterns.

• Rally-Base-Drop (RBD): an up move, a base, then a drop. Creates a supply zone. Bearish.
• Drop-Base-Rally (DBR): a down move, a base, then a rally. Creates a demand zone. Bullish.
• Rally-Base-Rally (RBR): an up move, a base, then a continuation up. Creates a demand zone. Bullish continuation.
• Drop-Base-Drop (DBD): a down move, a base, then a continuation down. Creates a supply zone. Bearish continuation.

Reversal vs continuation. RBD and DBR are reversal patterns; the base marks a transition of control. RBR and DBD are continuation patterns; the base is a pause in an established trend. Continuation patterns tend to be higher probability because they align with the existing trend.

Base structure rules. The base in all four patterns must show consolidation, not a single news spike. Look for 2-4 small candles with overlapping ranges. A single wide candle as the base is usually a news reaction and produces a fragile zone.

Probability ranking.

1. DBD and RBR in the direction of HTF trend: highest probability.
2. DBR at a higher-timeframe demand zone: high probability reversal.
3. RBD at a higher-timeframe supply zone: high probability reversal.
4. Reversal patterns against HTF trend: lowest probability, often fail.

Departure strength filter. Regardless of pattern, the departure leg must break structure. An RBD where the drop does not break the prior swing low is not a valid supply zone; it is just a pullback. Apply the same displacement rule across all four patterns.

Entry timing.

• Continuation patterns (RBR/DBD): enter on first retest of the base, stop beyond the base extreme.
• Reversal patterns (RBD/DBR): wait for a lower-timeframe confirmation (CHoCH or BOS) before entering, because reversals fail more often than continuations.

Common misclassification. Marking any pullback as RBD or DBR. A pullback that does not break structure is not a reversal pattern; it is a flag. Drawing a supply zone on every minor up-move base floods your chart with weak levels.

The base candle trap. In RBR and DBD, traders often include the departure candle inside the base box. The base box must end at the last consolidation candle before the departure impulse begins. Including the departure candle distorts the zone and pushes your entry too far from the actual order origin.

Classify first, trade second. A correct classification tells you whether to expect continuation or reversal, what size to risk, and whether to wait for confirmation or enter on touch.