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Quality's long-short spread posts its best 20-session run in a year while breadth thins to 21% above the 50-day

Wednesday, September 30, 2026 · as emailed at the close · the live view is always on the dashboard

Market snapshot

S&P 5007,653.56-0.2%
VIX16.3+2%
10-year5.29%+3bp
Breadth21%above 50-day · 46% a month ago

In brief

The story

The move. Quality's long-short spread ended September +2.1% against the S&P over 20 sessions, z +2.2 and the 100th percentile of the trailing year, its best 20-session run in a year. Both legs did work: Dell +27% and Meta +25% in the long leg, Charter -24%, MGM -24% and General Mills -22% in the short. Those five explain only 13% of the move; by sector, Utilities added 0.91pp, Real Estate 0.44pp and Basic Materials 0.42pp. The spread's 20-day realized vol sits at 6.7%, the 35th percentile.

The laggards. Commodity Producers are -9.6% vs the S&P over 20 sessions, z -1.8 and the 2nd percentile of the trailing year, in session four of the move: Albemarle -22%, Weyerhaeuser -18%, Expand Energy -16%, with Energy -4.44pp and Basic Materials -3.42pp. Defensives are -6.6% (z -1.1), with General Mills -22% and Clorox -15%. Defensives and the dividend yield long book remain the tightest pair on the board at r=+0.94 over 60 sessions of daily relative returns, -0.01 coefficient points from 20 sessions earlier on overlapping windows.

The market. The S&P closed at 7,653.56, -0.23% on the day and -0.8% on the week, with the 10-year at 5.29% (+3bp) and VIX at 16.34. Core PCE ran 3% year on year against 3.3% expected; Reuters attributed the Nasdaq's gain to soft inflation dampening rate hike expectations. Breadth is 21% above the 50-day, from 46% a month ago, a 20-session change at the 15th percentile since 2020. The month-end factor rebalance took effect at tonight's close; the adds and drops are below. Micron reported EPS of 33.42 vs 31.72 expected. Thursday brings jobless claims (consensus 200K) and results from ACN, NKE and MKC.

Who did it · 13% of the gain in these names

NameLeg20dContrib
DELL Dell Technologieslong+27%+0.27pp
META Meta Platformslong+25%+0.25pp
CHTR Charter Communicationsshort-24%+0.24pp
MGM MGM Resortsshort-24%+0.24pp
GIS General Millsshort-22%+0.22pp

By sector: Utilities added 0.9pp; Real Estate added 0.4pp; Basic Materials added 0.4pp.

The board · factors vs S&P 500, relative return with z vs the trailing year, sorted by the week

Factor1D5D20DYTD
S&P 500 (computed) absolute-0.3% -0.4σ-0.8% -0.7σ+0.3% -0.3σ+12.1%
Quality-0.3% -0.8σ+0.5% +0.5σ+2.3% +1.3σ+5.9%
Momentum-0.0% -0.1σ+0.8% +0.2σ+5.6% +1.2σ+20.3%
Low volatility-0.8% -0.8σ-0.6% -0.1σ-5.1% -1.0σ-9.3%
High beta+0.1% -0.0σ-0.1% -0.2σ+6.8% +1.1σ+19.7%
Dividend yield-0.5% -0.5σ-1.1% -0.5σ-6.9% -1.8σ-0.7%
Value-0.6% -0.7σ-0.9% -0.5σ-5.7% -1.9σ+0.0%
Size-0.4% -0.4σ-1.4% -0.7σ-6.3% -1.8σ-3.6%

Also

Breadth, leadership, revisions, realized vol and the baskets, every day: the dashboard. Explore correlations →. Headlines are quoted from their publishers for context.

Tomorrow · Oct 1

  • Thursday: Initial Jobless Claims (Sep/26), consensus 200K.
  • Thursday: Jobless Claims 4-Week Average (Sep/26), consensus 199K.
  • Thursday: Continuing Jobless Claims (Sep/19), consensus 1730K.
  • Reporting Thursday: ACN, NKE, MKC.
  • Month-end factor rebalance at the September 30 close.
  • September so far: High beta leads the quilt (+4.8%); the S&P sits 4th of 8.

The narrative in this brief is drafted by an AI model from Factor Watch's computed data and checked against it, but it can still be wrong — verify anything before you act on it.

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