Sector Rotation
How sector rotation works on Bursa Malaysia, why relative strength is a common measure, and a hypothetical Company A example.
What is Sector Rotation?
Sector rotation is the pattern of money moving from one industry group to another as market leadership changes. It is usually observed by comparing relative strength, which is a sector’s return minus the index return over a chosen period. There is no single formula for a rotation.
How it is calculated
The common tool is relative strength:
Relative strength = sector return − index return, over the same period
Some analysts divide instead, so state your method. Compare sectors over the same window. Relative strength is a convention, not a fixed law.
How Malaysian investors use it
Bursa sectors such as plantation, banking and construction respond to different drivers, such as commodity prices or interest rates. Investors who follow rotation look at which sectors are gaining relative strength and try to understand why. Because the FBM KLCI leans toward its largest members, a sector can rise strongly while the index barely moves, so always state the period used.
Worked example: Company A
Company A sits in a hypothetical sector called Industrial Services. Over three months:
- Sector return: +8.0%; index return: +3.0%
- Relative strength: 8.0% − 3.0% = +5.0 percentage points
A reversal next quarter, such as −2.0 points, would show leadership had shifted. These are past figures only.
Common mistakes
- Choosing a period after seeing the result.
- Comparing a sector with an index it does not resemble.
Related terms
- Moving average – a simple trend measure to pair with relative strength.
- FBM KLCI – the benchmark most sector comparisons use on Bursa.
- Market breadth – shows whether a sector’s move is shared across its stocks.
Where Finworld shows it
Finworld’s Sector & index performance view shows which Bursa sectors are leading, weakening or rotating, using end-of-day data.
Frequently asked questions
Is sector rotation the same as a sector trend?
Not quite. A trend describes a sector’s own price direction. Rotation compares sectors with each other or with the index.
Which period should I use?
There is no universal answer. Choose the period before looking at results, and check whether the conclusion holds over a second period.
Does rotation predict the next leading sector?
No. It describes past relative performance and does not forecast which sector will lead next.
See how this fits into Finworld Software, or book a demo.
Finworld provides market education and research tools only. This is not investment advice. Market data is end-of-day.
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