A quién sirve esta entrada — The signal that demand regained control: a convincing rally after a spring or in accumulation phase D.
Fuente: Wyckoff Schematics (Pruden, MTA 2006); Evans — «Jump Across the Creek» (JAC).
Prerrequisitos
Accumulation phases A–E, Three laws (effort/result).
Definition
In plain terms — A bar (or sequence) that rises with wide range and solid volume: buyers do not just hold price, they push it with conviction.
A Sign of Strength (SOS) is a bullish move with:
- Wide spread — significant upside range
- Relatively high volume — effort producing result (law #3)
- Strong close — in the upper part of the bar
Evidence that demand exceeds supply — typically after spring (validation) or in accumulation phase D.
Jump Across the Creek (JAC)
Evans compares SOS to jumping across the creek — clearing wavy internal range resistance (creek) with conviction. After the jump, price tends to return to the edge just cleared — the back-up to the edge of the creek — where the LPS forms. SOS and LPS are a pair: the first declares strength, the second offers the price to act.
Ejemplo — After a spring at €48, a bar closes at €54 on volume 2× the average with a wide daily range: an SOS that clears the creek at €52 — a signal the markup can begin.
SOS vs generic rally
| Wyckoff SOS | Any rally | |
|---|---|---|
| Context | Accumulation phase C–D | Any |
| Volume | High vs prior reactions | Variable |
| Position | After spring or mature range | — |
| Follow-up | LPS expected | Uncertain |
Caution — Isolated SOS without A–B structure and prior spring/test stays weak. Do not confuse FOMO breakout with Wyckoff SOS.
Operational use
- Confirms valid spring
- Wait for LPS for better reward/risk entry
- SOS + LPS = evidence the bottom is in place and markup started
- Stop below LPS or spring
Bearish symmetric: Sign of Weakness (SOW) in distribution.
Summary card
| Abbr. | SOS |
| Phase | D (accumulation) |
| Symmetric | SOW (distribution) |
| Operational pair | SOS → LPS |