A free relative rotation graph alternative
The classic RRG lives behind paywalls and crippled free tiers. This chart doesn't: all 11 S&P 500 sectors, mapped against the market in four rotation quadrants, from live data — right on this page.
What "free" actually gets you elsewhere
Relative Rotation Graphs® are excellent — and the real versions are paid products. The free tiers that exist are deliberately limited. Here is how the options actually stack up:
| Tool | Price | Universe | Method |
|---|---|---|---|
| Zensei (this page) | Free, no account | 11 S&P 500 sectors free · 100+ industries & themes on Premium | ROC spreads vs S&P 500, documented methodology |
| StockCharts RRG | Full RRG requires a paid plan | Broad, on paid tiers | JdK RS-Ratio / RS-Momentum (proprietary) |
| RRG Online | Free version, deliberately limited | Limited preset universes | JdK RS-Ratio / RS-Momentum (proprietary) |
| Optuma | Paid professional software | Full, for subscribers | JdK RS-Ratio / RS-Momentum (proprietary) |
Zensei is not an RRG chart: Relative Rotation Graph® and JdK RS-Ratio/RS-Momentum are trademarked methods of RRG Research. Zensei computes rate-of-change spreads against the S&P 500 — same four-quadrant reading, different (and fully documented) math. See the methodology.
Four quadrants, one question: is the market rewarding this sector?
Leading
Top rightOutperforming the S&P 500 now and over the longer window. Established leadership — the names the market is actively rewarding.
Improving
Top leftBehind over the longer window, but the recent window has turned positive. Where early rotation shows up first.
Weakening
Bottom rightStill ahead on the longer window, but the recent window has gone negative. Leadership losing energy.
Lagging
Bottom leftUnderperforming on both windows. The market has stopped rewarding this group.
The edge is in the transitions: improving sectors drifting toward leading, and leading sectors losing energy toward weakening. The live ranking below pairs the map with the numbers behind it — see the sector rotation chart page for the full walkthrough, or browse every tracked sector in the sector directory.
Common questions
Is Zensei's rotation chart really free?
Yes. The live chart on this page shows the 11 S&P 500 sector ETFs with no account and no trial clock. A free account lets you save favorites; Premium unlocks 100+ industries, themes and commodities, rotation history and alerts.
Is this the same as a Relative Rotation Graph (RRG)?
No — and that matters. RRG charts are built on the proprietary JdK RS-Ratio and RS-Momentum indicators licensed by StockCharts and Optuma. Zensei plots rate-of-change spreads versus the S&P 500 across two time windows. You read it the same way — four quadrants: leading, improving, weakening, lagging — but our math is fully documented on the methodology page.
What data does the chart use?
Daily and hourly prices for the sector ETFs and the S&P 500 benchmark (SPY). Analytics are recomputed every hour; this public preview is served from a snapshot refreshed daily.
How do I read the quadrants?
The vertical axis is the sector's recent outperformance versus the S&P 500; the horizontal axis is the same measure over a longer, time-shifted window. Top-right (leading) is outperforming on both. Top-left (improving) has just turned positive. Bottom-right (weakening) is losing its lead. Bottom-left (lagging) trails on both.
The 11 sectors are free. The other 100+ are one click away.
Premium extends the same rotation view to 100+ industries, themes and commodities — with drill-down into the stocks inside each sector, rotation history and alerts.