In plain terms — A Last Point of Supply is a recovery attempt that loses strength after a Sign of Weakness. Price rallies but cannot reclaim ground decisively. It is a Wyckoff hypothesis, not proof that a decline will begin.
Source and level — LPSY is a label in Wyckoff distribution codification. A weak rally matters only when context and later behaviour support the weakness; it does not by itself signal a sell point or a certain markdown.
In the modern codification of the Wyckoff method, LPSY describes a weak rally in the later stages of a possible distribution. The move is judged relative to preceding waves: how far price advances, the spread of its bars and the volume accompanying the rally all matter.
The label describes observable behaviour. Price and volume do not directly reveal the identity or intention of sellers.
The four essential checks
- Context — a trading range consistent with distribution must already exist; an ordinary bounce within a downtrend is not enough.
- Prior weakness — a SOW carries price toward support or through the “ICE”, making downside pressure more visible.
- Ineffective rally — the recovery makes less progress than the decline and struggles near former support or another identifiable resistance.
- Subsequent action — renewed weakness supports the label; a decisive range reclaim with bullish follow-through challenges it.
An Upthrust After Distribution (UTAD) is not required. Some distribution schematics include one; others progress to a SOW and LPSYs without first breaking the main resistance.
Reading spread and volume
Spread means the range of a bar from high to low. A rally with narrow, overlapping bars and lower volume than the decline is consistent with weak demand. Relatively high volume with little upward progress may also be read, under the effort-versus-result principle, as supply limiting the recovery.
These readings are relative, not universal numerical thresholds. Low volume, narrow bars or an isolated resistance level cannot define an LPSY on their own.
Teaching example — A SOW takes price from 78 to 71.5. The next rally stalls at 74, below former support at 74.5, with overlapping bars and lower volume. It is a candidate LPSY. A new decline below 71.5 strengthens the reading; a sustained return above 74.5 weakens it.
LPSY, UTAD and LPS compared
| Event | Where it appears | Function in a Wyckoff reading |
|---|---|---|
| UTAD | Above distribution-range resistance, followed by a return | Optional test of demand beyond the highs |
| LPSY | In a weak rally after a SOW | Tests whether demand can still recover |
| LPS | In a reaction after a Sign of Strength during accumulation | Bullish counterpart: tests whether support holds |
Why “last” can mislead
On a live chart, candidate LPSY is the more accurate description. The word last gains meaning only after the market shows renewed weakness. The same codification allows multiple LPSYs, both inside the range and on later rallies during the transition to markdown.
This dependence on later action creates hindsight risk. Labelling only the rallies that are followed by a decline makes the structure look cleaner than it was while the chart was developing.
Operational limits
- LPSY is not a standalone short signal and supplies no universal probability.
- Level, risk and invalidation must be defined before a possible trade rather than adjusted after the move.
- A range reclaim, rising highs or expanding demand require the distribution hypothesis to be reassessed.
- Ideal schematics and real markets do not always match; the sequence may be incomplete or ambiguous.
Sources
- Wyckoff Analytics — Wyckoff Method distribution schematics and events — LPSY definition, weak rally and role in phases D–E.
- Wyckoff Stock Market Institute — Are We Seeing a Last Point of Supply? — contextual use of spread and volume after a SOW.
- Pruden, Fraser and Bogomazov — The Composite Man's Bull Market Campaign, Technical Analysis of Stocks & Commodities, 2014 — distribution schematics, ICE, SOW and multiple LPSYs.
- Hank Pruden — The Three Skills of Top Trading, Wiley — publishing record and chapters on the modern codification of the Wyckoff method.
The sources document the vocabulary and interpretive process of the school. They do not demonstrate a universal predictive ability for LPSY or returns obtainable from using it.