Sector relative strength
Compares a sector's performance with the market to see which sectors are leading.
What it shows
Sector relative strength divides a sector index (for example the technology sector) by the broad market index. A rising line means the sector is beating the market.
Rotation is the idea that leadership moves from sector to sector over time. We show which ones lead and lag over 3 months.
How we find it
The same code that draws it on your chart follows these steps, with the same result every time.
- Pick a sector index and the broad market index.
- Ratio = sector ÷ market.
- Compute the 63-bar change in the ratio.
- Rank sectors by it.
Starting values: Window 63 bars. These are proposed and will be tuned on real price data before launch.
How to read it
- The panel shows the sector against the market.
- Rising: the sector leads.
- Falling: lagging.
Status labels you may see
| Label | What it means |
|---|---|
| Leading | Ratio up over 63 bars. |
| Lagging | Ratio down over 63 bars. |
| In line | Within 2%. |
What cancels it
Nothing cancels it.
What traders check next
- Rank among all sectors.
- Trend of the ratio.
- Which stocks drive it.
Limits
- Sector definitions differ.
- Leaders change.
- Past leadership is not a forecast.
Try it in forecastviz
- Open any ticker and choose Relative strength, cycles and structure → Sector relative strength in the left menu.
- Switch between 6M, 1Y, 3Y to see how the picture changes.
- Compare with Relative strength ratio and Relative strength line new high on the same chart.
Questions
Why compare to the market?
To remove the effect of a rising or falling market.
Do sectors rotate in a cycle?
Some books claim so. We make no claim.
Related trends
Further reading
- O'Neil, How to Make Money in Stocks
- Levy, The Relative Strength Concept of Common Stock Forecasting
- Pring, Technical Analysis Explained
- Frost and Prechter, Elliott Wave Principle
- Hank Pruden, The Three Skills of Top Trading
- Hirsch, Stock Trader's Almanac
Educational only. Not financial advice, and not a price forecast. Charts are drawn by code from past price data, which may be delayed.