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Momentum's bottom quintile rallies on the day; quality's 20-session run reaches 3σ

Thursday, October 15, 2026 · as emailed at the close · the live view is always on the dashboard

Market snapshot

S&P 5007,744.09+0.3%
VIX16.5-2%
10-year5.10%-9bp
Breadth45%above 50-day · 31% a month ago

In brief

The story

The move. Momentum's long-short spread fell 3.3% against the S&P on Thursday, a 2σ session at the 4th percentile of the trailing year, while the size book gained 1.8% (z +2.1). The same names sit on both sides: International Paper, Equifax and Fair Isaac each rose about 7%, all in momentum's bottom quintile and all in the size book. Technology cost the momentum spread 1.54pp, with Hewlett Packard Enterprise down 7% in the long leg. The five named contributors explain only 8% of the momentum move, so the day was broad rather than concentrated.

The books. Quality's spread is up 4.2% versus the S&P over 20 sessions, z +3.2 and the top of its trailing-year range, in session 12 of the run. PTC, up 44% in the long leg, contributed 0.44pp; Mosaic, Alexandria Real Estate and MGM Resorts, each down 23% to 25% in the short leg, added roughly a quarter point apiece. Quality has led the 20-day tape for two sessions, taking over from high beta.

The week. Healthcare is 5.5% ahead of the S&P on the week. The managed care basket is up 8.4% (Humana +12%, UnitedHealth +10%, Centene +9%) and hospitals 5.3% (DaVita and Universal Health Services +7%). MarketWatch reported big pharma near all-time highs as the tech selloff pushed investors toward safer bets. Memory and storage is 13.2% behind over 20 sessions, with Western Digital down 16%.

The market. The S&P closed at 7,744, up 0.33%, with the 10-year yield down 9bp to 5.10%; the WSJ tied the gain to Treasury yields giving back recent gains. VIX fell to 16.46. September PPI printed 1.3% against 0.5% expected. Breadth improved: 45% of the index is above its 50-day average, from 31% a month ago.

Who did it · 8% of the shortfall in these names

NameLeg1dContrib
EFX Equifaxshort+7%-0.07pp
RDDT Reddit, Inc.short+7%-0.07pp
HPE Hewlett Packard Enterpriselong-7%-0.07pp
FICO Fair Isaacshort+7%-0.07pp
IP International Papershort+7%-0.07pp

By sector: Technology cost 1.5pp; Consumer Cyclical cost 0.7pp; Industrials cost 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+0.4% +0.4σ-0.2% -0.3σ+1.4% +0.0σ+13.6%
Size+1.8% +2.1σ+2.9% +1.5σ-0.8% -0.1σ-0.9%
Low volatility+0.2% +0.2σ+3.1% +1.5σ+0.4% +0.3σ-6.1%
Dividend yield+0.8% +0.8σ+2.4% +1.0σ-1.6% -0.4σ+2.2%
Value+0.8% +0.8σ+1.6% +0.8σ-2.0% -0.7σ+2.9%
Quality+0.2% +0.5σ-0.3% -0.6σ+1.5% +0.7σ+5.6%
High beta-0.9% -0.8σ-5.1% -2.0σ-2.5% -0.8σ+12.7%
Momentum-1.1% -1.1σ-3.9% -2.1σ-2.1% -0.9σ+14.3%

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 16

  • Reporting Friday: TRV, TFC, MTB, CFG and 1 more.

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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