Who this entry is for — Anyone picking «strong» stocks by looking at the chart in isolation. Wyckoff compares the candidate with the index: in markup the method seeks leaders; in markdown it seeks laggards. This is one of the filters used to distinguish reaccumulation from distribution, not a confirmation on its own.
Source and level — Relative strength is treated here as a stock-to-market comparison in modern Wyckoff teaching. Test numbering and ratio interpretation remain source- and context-dependent.
Reference basis: modern Wyckoff teaching documents the stock-to-market comparison in step 2. In the checklist reproduced by StockCharts it is buying test 7 and selling test 4, so the number is not the same on both sides. Full references appear at the end of this entry.
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 has relative strength and may become a long candidate if structure and context agree. Does it rise less and fall more? It has relative weakness and may become a short candidate under the same conditions. 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 Wilder's Relative Strength Index (RSI): it is a visual comparison or a ratio. The stock and index charts can be placed side by side, or the stock/index ratio can be observed; that ratio rises when the stock outperforms. In step 2 of the five-step approach, the Wyckoff tradition looks for long candidates with accumulation structure and relative leadership; for shorts, it looks for distribution and relative weakness. In the modern checklist reproduced by StockCharts, the comparison is buying test 7 and selling test 4.
| 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 | Leadership in markup strengthens the reaccumulation hypothesis | Weakness after a rally strengthens the distribution hypothesis |
Example — The index falls 3% in two weeks while stock A falls 0.8% over the same period and shows a reaccumulation range with an internal spring. Relative strength supports the reaccumulation hypothesis, but does not confirm it by itself. Stock B falls 3% like the index inside a «similar» range after a rally: the lack of leadership weakens the bullish hypothesis; structure, volume and market phase must decide.
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.
- Wave comparison — highs, lows, rallies and reactions in the stock are compared with the corresponding points in the index; the stock's volume is read together with its own structure.
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 a relative-strength comparison, market context and the range structure, that label is not justified: the range could also be distribution.
Summary card
| Step | 2 (selection); buying test 7 and selling test 4 |
| Tool | Comparative charts or stock/index ratio |
| Long | Relative leader |
| Short | Relative laggard |
| Key uses | Selection and a consistency check on the structure |
Sources
- StockCharts, The Wyckoff Method: A Tutorial, sections “Comparative Strength Analysis” and “Nine Buying/Selling Tests”: https://chartschool.stockcharts.com/table-of-contents/market-analysis/wyckoff-analysis-articles/the-wyckoff-method-a-tutorial.
- StockCharts, Wyckoff Stock Analysis, section “Relative Performance”: https://chartschool.stockcharts.com/table-of-contents/market-analysis/wyckoff-analysis-articles/wyckoff-stock-analysis.
- Wyckoff Analytics, The Wyckoff Method (official educational material, 2022): https://www.wyckoffanalytics.com/wp-content/uploads/2022/06/Wyckoff-Method-Wyckoff-Analytics-English-V2.pdf.
- Hank Pruden, The Three Skills of Top Trading (Wiley, 2007), chapters 5–6: https://doi.org/10.1002/9781119196822.