GENERAL ELECTRIC and INGERSOLL RAND INC moved almost identically (+0.85% vs +0.95%), yet GE moved the XLI 9.3× 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 +0.85 pt move · cell size = points contributed · color = direction, intensity = return
DE−0.3 pts(−4.9%)
PWR+0.1 pts(+3.0%)
GE+0.1 pts(+0.9%)
UBER+0.1 pts(+1.8%)
RTX+0.1 pts
BE+0.1 pts(+2.7%)
BA+0.1 pts
JCI+0.1 pts
ETN+0.1 pts
CAT+0.1 pts
PH+0.1 pts
MMM−0.1 pts(−2.2%)
EMR+0.1 pts(+1.7%)
TT+0.1 pts(+1.4%)
GEV+0.0 pts(+0.5%)
HONA+0.0 pts
HWM+0.0 pts
TDG+0.0 pts(+1.7%)
GWW+0.0 pts(+1.7%)
PCAR−0.0 pts
WAB+0.0 pts
FERG
EME+0.0 pts
WM−0.0 pts
AXON
CTAS
CMI
LMT
HON
GD
DD
FIX
LDOS
FAST
FTV
CARR
Concentration curve
cumulative share of the +0.85 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−5%−3%−1%+1%+3%
From −4.85% (DE) to +3.01% (PWR). Equal-weight, the XLI would be +0.39% vs the actual +0.50%; the gap is what cap weighting did.
By sector
point contribution · sums to +0.85 pts
-82
+0.8
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT
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Industrials · Select Sector
What moved the market
1D · OCT 9, 2026
+0.50%
+0.8 pts · closed 169.25
57 of 82 rose · 25 fell
PWR+3.0%
+0.1
GE+0.9%
+0.1
UBER+1.8%
+0.1
RTX+0.9%
+0.1
BE+2.7%
+0.1
WM−0.6%
−0.0
NOC−0.8%
−0.0
PCAR−1.5%
−0.0
MMM−2.2%
−0.1
DE−4.9%
−0.3
Mixed tape · top 3 drove 33% of the gainWMTMT.COM
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