Who this entry is for — Anyone picking «strong» stocks by looking at the chart in isolation. Wyckoff always compares the candidate with the index: in markup he wants leaders; in markdown he wants laggards. It is also the filter that separates reaccumulation from distribution.
Source: Wyckoff Analytics; Pruden, The Three Skills of Top Trading (2007) — stock/market harmony as the second skill. Step 2 and test #7 of the nine buying/selling tests.
Prerequisites
Five Wyckoff steps (step 2 — Selection) and Three laws.
Definition
In plain terms — Does the stock rise more than the market and fall less? It is strong — a long candidate in accumulation. Does it rise less and fall more? It is weak — a short candidate in distribution. The tide matters as much as the wave.
Relative strength in Wyckoff measures whether a stock outperforms or underperforms the reference index (S&P 500, FTSE MIB, sector) under the same market conditions. It is not a separate indicator in the Wilder sense — it is a visual comparison or ratio: stock chart overlaid on the index, or stock/index ratio rising when the stock is a leader. In step 2 of the five steps, Wyckoff selects longs on stocks with accumulation structure and relative leadership; shorts on stocks with distribution and relative weakness. Test #7 of the nine buying tests explicitly requires the stock to be «stronger than the market»; the nine selling tests mirror this.
| Bias | Relative strength required | Operational signal |
|---|---|---|
| Long / accumulation | Stock ↑ more than index; pullback ↓ less | Bullish harmony |
| Short / distribution | Stock ↓ more than index; rally ↑ less | Bearish harmony |
| Reaccumulation vs distribution | Strong in markup = reaccumulation | Weak at top = distribution trap |
Example — Index −3% in two weeks; stock A −0.8% in the same period with a reaccumulation range and internal spring: positive relative strength → reaccumulation likely. Stock B −3% like the index but in a «similar» range after a rally: no leadership → distribution more likely if the market is in a distributive phase.
How to measure it in practice
- Normalised overlay — same starting point on stock and index; whoever pulls away upward wins.
- Ratio line — stock/index rising = strength; falling = weakness.
- Inside ranges — volume on rallies vs volume on declines against the index: in reaccumulation the stock's rallies hold while the index goes sideways.
Relative strength does not replace Wyckoff structure (phases A–E, spring, SOS): a strong stock in a generally distributive market remains a risky long — step 1 takes priority.
Common mistake — Declaring «reaccumulation» on a range that looks constructive but underperforms the index for weeks. Without test #7 and without general markup context, it is often masked distribution.
Summary card
| Step | 2 (Selection) + test #7 |
| Tool | Bar chart stock vs index |
| Long | Relative leader |
| Short | Relative laggard |
| Key uses | Reaccumulation filter, nine tests |