Sector Rotation Detector · Weekly Scan · Public preview

1 sector is rotating · 10 stable

Scan day · Saturday, October 10, 2026

Only one of the eleven S&P 500 sectors cleared the sign-flip + 2pp magnitude threshold this scan: Utilities (XLU), which has swung from a +6.5pp relative-strength lead over SPY in Sept-Oct 2025 to a -5.3pp drag over the same window in 2026 — an 11.8pp decisive rotation out of what was last year's AI-power darling trade. Everything else is stable: Technology continues to lead with sector-wide magnitude cooling, Financials and Real Estate are extending their underperformance without flipping, and Health Care's lead has shrunk toward neutral but has not inverted. Across the full landscape, SPY ran +2.7% over the trailing 30 days versus +0.1% in the prior-year window, so the index backdrop is stronger — a hostile regime for defensive bond-proxies.

The money-flow footprint under XLU is counter-intuitive at first glance: aggregate 10-day net flow into the five highest-volume Utility ETFs is positive (XLU alone absorbed +$4.77B), despite negative price action. That reflects index rebalancing and short-covering on the leg down rather than conviction accumulation — flow is positive on days of relief bounces (notably Oct 6) and heavier on red days further back. The read: Utilities is bleeding leadership, not getting bought on dips. Watch for the first week of positive net flow with a positive relative-strength reading before calling a bottom.

Headline rotation — fully revealed

Utilities

XLU

Turning negative ↘

RS · now-5.3%

RS · 1 yr ago+6.5%

Top ETF (by 10d flow)XLU

Thesis

Utilities was the stealth AI trade of 2025 — data-center electricity demand pushed XLU +6.6% while SPY was flat, a +6.5pp relative-strength lead. One year later the setup has fully inverted: XLU is -2.6% versus SPY +2.7%, a -5.3pp drag and an 11.8pp decisive swing. Three drivers appear to be converging. First, the AI power-draw narrative has saturated — every regulated utility with a hyperscaler PPA is now owned, and incremental buyers are gone. Second, with SPY running cleanly higher the defensive bid has evaporated — capital is rotating into cyclicals and tech beta, not bond-proxies. Third, the 10-year has stayed sticky above the levels that let utilities re-rate, so the duration-sensitive dividend yield math no longer screens cheap against Treasuries. The positive 10-day net flow (+$5.2B across the top five funds) is primarily index/rebalance mechanics on the pullback, not a conviction bid — flow spikes on relief days rather than on sustained accumulation.

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Utilities

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