A quién sirve esta entrada — For anyone who wants to stop buying «the bounce» and start reading a complete accumulation campaign: halt of the downtrend, construction of the cause, final test of supply, dominance of demand, exit into markup.
Fuente: Pruden & von Lichtenstein, Wyckoff Schematics (MTA Journal 55, 2006); Wyckoff Analytics. Pruden publishes two accumulation schematics: one with a spring in phase C, one without — both valid.
Prerrequisitos
Trading range, Composite Man, Three laws.
The schematic in brief
Accumulation is a trading range after a downtrend in which the Composite Man buys clearly more than he sells, builds cause (law 2) and, toward the end, signals that demand controls price. The A–E phases are not decoration: they signal where we are in the campaign and which mistakes to avoid (early longs in phase B, FOMO on a breakout without SOS, and so on).
| Phase | Function | Operational question |
|---|---|---|
| A | Halt of the downtrend | Has dominant supply been exhausted? |
| B | Building the cause | Is the range accumulating enough «load»? |
| C | Decisive test of supply | Does anyone still want to sell below support? |
| D | Dominance of demand | Do SOS + LPS confirm control? |
| E | Markup | Exit the range — evident trend |
Range events (abbreviations)
| Abbr. | Event | Role |
|---|---|---|
| PS | Preliminary Support | First signs of demand after the downtrend |
| SC | Selling Climax | |
| AR | Automatic Rally | Post-SC bounce; delimits range resistance |
| ST | Secondary Test | Return toward the SC area; reduced volume vs SC |
| Spring | Shakeout | |
| SOS | Sign of Strength | |
| LPS | Last Point of Support |
Phase A — Change of character to the downside
Phase A marks the passage from downtrend to relative equilibrium. Until PS and the SC, supply dominates; the climax transfers enormous volume from the public to the large operators — often with a close far from the low of the bar (maximum effort, limited net result: law 3).
The Automatic Rally follows because selling pressure eases: short covering and institutional demand push price up and define the initial ceiling of the range. The Secondary Test brings price back toward the SC area: if volume and spread are lower than the climax, the bottom is confirmed; if the ST drops below the SC low, new lows or a longer consolidation are needed.
Ejemplo — Downtrend from €52 to €38. SC at €36.50: volume 5× average, daily range €2, close €37.80. AR at €42. ST at €37.10 on volume −60% vs SC. Provisional range €36.50–€42 — phase A complete.
Without a clear PS/SC/ST the range may be reaccumulation in markup (reaccumulation): an attenuated phase A, with the downtrend absent or brief.
Phase B — The cause loads up
In phase B price oscillates inside the range while the Composite Man accumulates. Repeated tests of support and resistance, upthrusts at the top (false upside breaks that test supply), and volume and spread that tend to narrow toward the end of the phase. The horizontal P&F count grows — a future minimum objective (cause count).
Wyckoff Analytics warns: do not trade every oscillation in phase B. The analytical objective is to measure the cause and wait for phase C–D; early longs here often pay for a longer range or a painful spring.
Phase C — The test of supply
Phase C answers a single question: is there enough supply left on the market to prevent markup? The typical tool is the spring — price below support, a rapid return into the range, light volume: a bear trap that liquidates the weak holders and allows final buys at low prices.
Pruden's schematic #2 shows accumulation without a spring: the test happens higher in the range with a direct SOS. Both variants are valid; forcing a spring where there is none is a rigid-checklist mistake.
Frequent mistake — Buying the spring without waiting for SOS. The spring validates the absence of supply; the SOS validates the presence of aggressive demand. A partial entry is possible on the spring; operational confirmation comes on SOS/LPS.
Phase D — Creek, JAC, LPS
In phase D demand dominates repeatedly: a sequence of SOS and LPS, with price advancing toward the upper resistance of the range. Robert Evans describes the SOS as the jump across the creek — the wavy line joining the intermediate highs (trading range) — and the LPS as the back-up to the edge of the creek: a mild pullback on reduced volume to the support that was resistance.
| Signal | What it must show |
|---|---|
| SOS | Wide up-spread, volume ≥ previous reactions, strong close |
| LPS | Low volume, narrow spread, support held (often the former creek) |
| Law 3 | Volume on SOS > volume on the pullback |
Favourable zone for longs and adds; stop below the LPS or the spring.
Phase E — Markup and stepping stones
In phase E the stock leaves the range; demand is evident even to the public. Pullbacks stay shallow; subsequent LPS offer trailing or adds. Possible stepping stones — reaccumulation ranges within the markup — reload cause toward extended P&F targets.
Minimum objective: count from phase B. Stop: structure (below the last significant LPS), not an arbitrary percentage.
Nine buying tests (Wyckoff Analytics)
Checklist for step 4 — with the chart type required:
| # | Test | Chart |
|---|---|---|
| 1 | Previous downside objective reached | P&F |
| 2 | PS, SC, ST present | Bar + P&F |
| 3 | Bullish activity (volume ↑ on rallies, ↓ on reactions) | Bar |
| 4 | Bearish stride broken (supply line) | Bar or P&F |
| 5 | Higher lows | Bar or P&F |
| 6 | Higher highs | Bar or P&F |
| 7 | Stock stronger than the market | Bar |
| 8 | Horizontal base forming | Bar or P&F |
| 9 | Potential upside ≥ 3× the stop risk | P&F + bar |
Summary card
| Ideal long timing | Phase C–D (post-spring, entry on LPS) |
| Stop | Below the spring or LPS |
| Target | P&F cause count |
| Pruden variants | With spring / without spring |
| Symmetric |