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Sector Rotation: Health Care Leads as Dispersion Expands
High-dispersion regime with dispersion expanding. Health Care Select Sector SPDR® Fund leads; Consumer Staples Select Sector SPDR® Fund gains ground.
US equity sector dispersion across the 11 S&P 500 sector ETFs is high and expanding, with a z-score of 3.703 and positive velocity. That regime points to broadening cross-sectional spread and stronger selection breadth, with alpha capture concentrated in specific relative-strength pockets rather than broad-beta exposure.
Health Care Select Sector SPDR® Fund is the confirmed leader. It leads the cross-section with positive 5-day relative strength of 0.474 and positive 20-day relative strength of 0.228, while recent velocity is accelerating. The positive cluster also includes Real Estate, Financials, and Energy, which sit on the favorable side of both horizons and register as positive participants rather than primary leaders.
Consumer Staples turns higher from a lagging base and is the clearest early rotation, with 5-day relative strength at 0.221 against a slightly negative 20-day reading of -0.080. Utilities also migrate through improving from a negative 20-day base. Technology rolls from above, losing 5-day momentum while holding a positive 20-day profile.
The configuration favors concentrated exposure to the leading quadrant and selective engagement with early rotation candidates over broad-beta positions.
Sector Rotation Map

Alpha Z: risk-adjusted relative strength vs the equal-weighted S&P 500 sector basket (Z-score). Velocity: rate of change in short-term relative strength (1D vs 5D Z-score delta — tactical momentum). Structural velocity: smoothed 5D vs 20D momentum delta, reflecting regime-level directional shifts.
Momentum Leaders
• Health Care — Rank #4 | Alpha Z: +1.41 | Velocity: +0.94
• Energy — Rank #8 | Alpha Z: -0.55 | Velocity: -0.85
• Financial — Rank #5 | Alpha Z: +1.27 | Velocity: +0.91
• Real Estate — Rank #2 | Alpha Z: +1.83 | Velocity: +1.36
Rotation Warnings
• Technology — Rank shift (1D vs 5D): -2 | Structural velocity: -0.68
Mean Reversion Candidates
• Consumer Staples — Alpha Z: +2.80 | Velocity: +2.58
• Utilities — Alpha Z: +1.62 | Velocity: +1.58
• Communication Services — Alpha Z: -0.37 | Velocity: +0.36
Romain Gandon
CEO, Quantlake
Disclaimer: This article is for informational and educational purposes only and does not constitute investment advice. Past performance is not indicative of future results.


