25 members · detractors first · 5Y · residual 5861.5bp exceeds 60bp gate
The XLB fell 36.98% (−31.45 pts) over five years, but 15 of 25 members went the other way. DOW and IFF dragged the tape lower, accounting for 22% of the decline.
SHERWIN WILLIAMS CO/THE and AIR PRODUCTS + CHEMICALS INC moved almost identically (+20.20% vs +22.40%), yet SHW moved the XLB 6.1× 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 −31.45 pt move · cell size = points contributed · color = direction, intensity = return
LIN+5.3 pts(+67.3%)
FCX+3.7 pts(+144.6%)
DOW−3.6 pts(−36.5%)
NEM+3.5 pts(+165.2%)
CRH+3.1 pts(+113.2%)
MLM+2.1 pts(+45.3%)
VMC+2.0 pts(+53.6%)
STLD+1.9 pts
IFF−1.8 pts(−35.6%)
ALB−1.6 pts(−34.7%)
MOS−1.6 pts
LYB−1.5 pts
SHW+1.4 pts(+20.2%)
CTVA+1.2 pts(+94.0%)
PPG−1.2 pts(−24.6%)
AVY−0.9 pts(−9.4%)
IP−0.8 pts
PKG+0.8 pts
NUE+0.7 pts
SW
AMCR−0.6 pts
BALL
CF
Concentration curve
cumulative share of the −31.45 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−50%+50%+150%+250%
From −36.50% (DOW) to +261.73% (STLD). Equal-weight, the XLB would be +58.62% vs the actual −36.98%; the gap is what cap weighting did.
By sector
point contribution · sums to −31.45 pts
-25
+13.2
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
5Y · AUG 25, 2026
−36.98%
−31.4 pts · closed 53.59
15 of 25 rose · 10 fell
LIN+67.3%
+5.3
FCX+144.6%
+3.7
NEM+165.2%
+3.5
CRH+113.2%
+3.1
MLM+45.3%
+2.1
LYB−13.2%
−1.5
MOS−12.3%
−1.6
ALB−34.7%
−1.6
IFF−35.6%
−1.8
DOW−36.5%
−3.6
DOW sank a split tape · 15 of 25 went the other wayWMTMT.COM
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