NEXTERA ENERGY INC and PPL CORP moved almost identically (−4.03% vs −3.73%), yet NEE moved the XLU 6.8× 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 −2.04 pt move · cell size = points contributed · color = direction, intensity = return
VST−0.3 pts(−12.3%)
AEP−0.2 pts(−10.3%)
NRG−0.2 pts(−22.0%)
CEG+0.2 pts(+12.1%)
NEE−0.2 pts(−4.0%)
SRE−0.2 pts(−9.4%)
SO−0.1 pts(−6.0%)
ETR−0.1 pts(−7.5%)
PEG−0.1 pts(−9.7%)
PCG+0.1 pts
DTE−0.1 pts(−10.7%)
CNP−0.1 pts(−11.6%)
NI−0.1 pts(−13.9%)
WEC−0.1 pts(−8.7%)
DUK−0.1 pts(−3.9%)
CMS−0.1 pts
EXC−0.1 pts
LNT−0.1 pts
AWK+0.1 pts
AEE−0.0 pts
XEL−0.0 pts
EIX
EVRG
PNW
ED−0.0 pts
PPL−0.0 pts
ATO
ES
Concentration curve
cumulative share of the −2.04 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−25%−15%−5%+5%
From −21.95% (NRG) to +12.10% (CEG). Equal-weight, the XLU would be −5.24% vs the actual −4.50%; the gap is what cap weighting did.
By sector
point contribution · sums to −2.04 pts
-31
−2.0
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
QTD · AUG 25, 2026
−4.50%
−2.0 pts · closed 43.30
5 of 31 rose · 26 fell
CEG+12.1%
+0.2
PCG+9.2%
+0.1
AWK+4.6%
+0.1
EIX+1.6%
+0.0
AES+1.6%
+0.0
SRE−9.4%
−0.2
NEE−4.0%
−0.2
NRG−22.0%
−0.2
AEP−10.3%
−0.2
VST−12.3%
−0.3
Broad selloff · VST led at −0.26 ptsWMTMT.COM
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