25 members · drivers first · 6M · residual 15.0bp within 60bp gate
The XLB rose 1.11% (+0.59 pts) over the past six months, but 13 of 25 members went the other way. NEM and NUE carried the tape higher, contributing more than the entire move.
ECOLAB INC and AVERY DENNISON CORP moved almost identically (−4.67% vs −4.33%), yet ECL moved the XLB 12.2× as much. In a cap-weighted index, the bigger company's weight turns the same percentage move into far more points.
Attribution map
slicing the +0.59 pt move · cell size = points contributed · color = direction, intensity = return
ALB−0.7 pts(−31.0%)
NEM+0.7 pts(+5.9%)
NUE+0.6 pts(+44.9%)
FCX+0.6 pts(+15.1%)
MLM−0.6 pts(−20.7%)
CRH−0.5 pts(−18.6%)
LIN−0.5 pts(−3.5%)
APD+0.3 pts(+10.7%)
VMC−0.3 pts(−10.0%)
STLD+0.3 pts
IFF+0.2 pts
CF+0.2 pts(+31.3%)
LYB+0.2 pts(+12.8%)
CTVA+0.1 pts(+7.2%)
SW+0.1 pts(+9.1%)
PKG+0.1 pts(+8.1%)
ECL−0.1 pts
DOW+0.1 pts
SHW
AMCR−0.1 pts
MOS
Concentration curve
cumulative share of the +0.59 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−40%−20%0%+20%+40%
From −30.99% (ALB) to +44.87% (NUE). Equal-weight, the XLB would be +4.30% vs the actual +1.11%; the gap is what cap weighting did.
By sector
point contribution · sums to +0.59 pts
-25
+0.7
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG
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Materials · Select Sector
What moved the market
6M · AUG 26, 2026
+1.11%
+0.6 pts · closed 53.65
12 of 25 rose · 13 fell
NEM+5.9%
+0.7
NUE+44.9%
+0.6
FCX+15.1%
+0.6
APD+10.7%
+0.3
STLD+23.8%
+0.3
VMC−10.0%
−0.3
LIN−3.5%
−0.5
CRH−18.6%
−0.5
MLM−20.7%
−0.6
ALB−31.0%
−0.7
NEM carried a split tape · 13 of 25 went the other wayWMTMT.COM
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