CHEVRON CORP and TEXAS PACIFIC LAND CORP moved almost identically (+33.65% vs +30.06%), yet CVX moved the XLE 7.0× 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 +17.36 pt move · cell size = points contributed · color = direction, intensity = return
CVX+2.5 pts(+33.7%)
MPC+2.2 pts(+120.2%)
VLO+2.1 pts(+111.4%)
PSX+2.0 pts(+86.3%)
COP+1.2 pts(+42.9%)
SLB+0.9 pts(+40.4%)
XOM+0.9 pts(+8.6%)
EOG+0.8 pts(+42.2%)
TRGP+0.8 pts(+57.0%)
OXY+0.6 pts
BKR+0.5 pts(+36.7%)
DVN+0.5 pts(+29.7%)
FANG+0.5 pts(+34.5%)
OKE+0.4 pts
TPL+0.4 pts
KMI+0.4 pts
EXE−0.3 pts
WMB
HAL+0.3 pts
APA+0.3 pts
Concentration curve
cumulative share of the +17.36 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−25%0%+25%+50%+75%+100%
From −13.25% (EXE) to +120.17% (MPC). Equal-weight, the XLE would be +42.34% vs the actual +38.83%; the gap is what cap weighting did.
By sector
point contribution · sums to +17.36 pts
-21
+17.2
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG
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Energy · Select Sector
What moved the market
YTD · AUG 25, 2026
+38.83%
+17.4 pts · closed 62.07
20 of 21 rose · 1 fell
CVX+33.7%
+2.5
MPC+120.2%
+2.2
VLO+111.4%
+2.1
PSX+86.3%
+2.0
COP+42.9%
+1.2
EQT+1.3%
−0.0
EXE−13.3%
−0.3
Broad advance · CVX led at +2.53 ptsWMTMT.COM
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