BAKER HUGHES CO and HALLIBURTON CO moved almost identically (−4.16% vs −4.67%), yet BKR moved the XLE 7.6× 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 +6.97 pt move · cell size = points contributed · color = direction, intensity = return
MPC+1.8 pts(+82.4%)
VLO+1.7 pts(+71.6%)
PSX+1.5 pts(+54.5%)
XOM+0.9 pts(+8.6%)
COP+0.4 pts
EOG+0.4 pts
CVX+0.4 pts
BKR−0.3 pts(−4.2%)
WMB−0.3 pts(−1.9%)
TRGP+0.3 pts(+24.4%)
FANG+0.3 pts(+17.2%)
TPL−0.3 pts(−29.8%)
OXY+0.2 pts(+13.5%)
DVN+0.2 pts(+9.8%)
APA+0.2 pts(+45.4%)
KMI−0.2 pts(−2.7%)
EXE−0.1 pts
EQT
OKE
Concentration curve
cumulative share of the +6.97 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−50%−25%0%+25%+50%+75%
From −29.78% (TPL) to +82.43% (MPC). Equal-weight, the XLE would be +15.15% vs the actual +12.65%; the gap is what cap weighting did.
By sector
point contribution · sums to +6.97 pts
-21
+6.8
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG
Share this move
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Energy · Select Sector
What moved the market
6M · AUG 25, 2026
+12.65%
+7.0 pts · closed 62.07
14 of 21 rose · 7 fell
MPC+82.4%
+1.8
VLO+71.6%
+1.7
PSX+54.5%
+1.5
XOM+8.6%
+0.9
COP+20.1%
+0.4
EXE−7.2%
−0.1
KMI−2.7%
−0.2
TPL−29.8%
−0.3
WMB−1.9%
−0.3
BKR−4.2%
−0.3
3 stocks drove 72% of the gain: MPC, VLO, PSXWMTMT.COM
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