The market rarely rises as one. Money moves between groups as the economy, rates and earnings expectations change, and the groups it moves into tend to hold most of the big winners. Sector rotation is the study of where that money is going, and it is one of the simplest ways to put the odds on your side before you pick a single stock.
Trade leaders in leading groups. A strong stock in a strong sector has a tailwind; a strong stock in a weak sector is swimming against it.
How rotation shows up
- Sector ETFs ranked by relative strength. Compare each sector ETF's performance with the market over one to six months. The leaders change, and the change is the signal.
- Breadth inside the sector. A sector rising on two mega-caps is narrow; one where most members are above their 50-day average is broad.
- New highs by group. When the stocks making new 52-week highs cluster in two or three groups, that is where leadership is.
What is different about the fourth quarter
Q4 carries flows that have nothing to do with the economy, and they can distort the picture for a few weeks:
- Tax-loss selling. Investors sell losing positions before year-end to realise losses, which can push the year's laggards lower into December regardless of news.
- Window dressing. Some fund managers buy the year's winners before reporting dates so they appear in year-end holdings.
- Positioning for next year. Funds start rotating towards the groups they expect to lead in the new year, which can show up as early relative strength in sectors that lagged.
- Earnings season. Third-quarter reports in October and November can re-rate whole industries in a few sessions.
None of these is a reliable trading rule on its own; they are reasons to trust sustained relative strength over a single week's move.
A sector-first routine
- Rank the sectors. Note the top three by relative strength and whether each is rising or falling in rank.
- Check breadth inside them. Prefer the sector where most members are trending, not just its largest stock.
- Find the leaders inside. Stocks ranked RS 80 or higher, holding above their 50-day average.
- Then wait for a setup. A breakout or a tight base in one of those names.
How SwingTradeScanner shows it
The Sectors & Themes view ranks every sector and theme ETF by relative strength each day, and the Sector Rotation scan lists stocks ranked RS 80 or higher in sectors whose own ETF ranks RS 60 or higher, holding above their 50-day average: leaders in leading groups, already filtered.
Follow the money by group
Sector and theme rankings update after every close, with the leaders inside each group.
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