CONSTELLATION ENERGY and DTE ENERGY COMPANY moved almost identically (+0.89% vs +0.80%), yet CEG moved the XLU 2.5× 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 +0.19 pt move · cell size = points contributed · color = direction, intensity = return
CEG+0.0 pts(+0.9%)
SRE+0.0 pts(+1.4%)
VST+0.0 pts(+1.0%)
CNP+0.0 pts(+1.7%)
NRG+0.0 pts(+1.8%)
PEG+0.0 pts(+1.0%)
ED+0.0 pts(+0.8%)
ETR+0.0 pts(+0.6%)
DUK+0.0 pts(+0.3%)
AEP+0.0 pts
WEC+0.0 pts(+0.8%)
DTE+0.0 pts(+0.8%)
EIX−0.0 pts
XEL+0.0 pts(+0.4%)
NI+0.0 pts(+1.0%)
ATO+0.0 pts(+0.7%)
AEE+0.0 pts
ES+0.0 pts
EVRG+0.0 pts(+0.8%)
LNT+0.0 pts(+0.8%)
PPL+0.0 pts
NEE
PNW+0.0 pts
D−0.0 pts
EXC
CMS
AWK
Concentration curve
cumulative share of the +0.19 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−1.00%−0.50%0%+0.50%+1.00%+1.50%
From −0.72% (EIX) to +1.80% (NRG). Equal-weight, the XLU would be +0.55% vs the actual +0.45%; the gap is what cap weighting did.
By sector
point contribution · sums to +0.19 pts
-31
+0.2
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG
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Utilities · Select Sector
What moved the market
1D LIVE · AUG 26, 2026
+0.45%
+0.2 pts · now 43.49
26 of 31 rose · 5 fell
CEG+0.9%
+0.0
SRE+1.4%
+0.0
VST+1.0%
+0.0
CNP+1.7%
+0.0
NRG+1.8%
+0.0
PCG−0.1%
−0.0
EXC−0.2%
−0.0
D−0.1%
−0.0
NEE−0.1%
−0.0
EIX−0.7%
−0.0
Broad advance · CEG led at +0.02 ptsWMTMT.COM
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