47 members · drivers first · 1M · residual 0.3bp within 60bp gate
The XLY rose 6.41% (+7.10 pts) on the month, but 22 of 47 members went the other way. AMZN and TSLA carried the tape higher, accounting for 86% of the gain.
AMAZON.COM INC and TRACTOR SUPPLY COMPANY moved almost identically (+12.82% vs +12.00%), yet AMZN moved the XLY 48.5× 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 +7.10 pt move · cell size = points contributed · color = direction, intensity = return
AMZN+3.1 pts(+12.8%)
TSLA+2.3 pts(+13.3%)
BKNG+0.6 pts(+14.4%)
ABNB+0.6 pts(+29.7%)
DASH+0.5 pts(+26.6%)
TJX−0.5 pts(−10.5%)
CVNA+0.3 pts(+18.3%)
EXPE+0.2 pts(+21.4%)
GRMN+0.2 pts
MAR−0.2 pts
RCL−0.1 pts
CMG+0.1 pts
NKE
TPR
EBAY
APTV
SBUX
LOW
DRI
YUM
DECK
CCL
Concentration curve
cumulative share of the +7.10 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−20%−10%0%+10%+20%
From −18.84% (APTV) to +29.72% (ABNB). Equal-weight, the XLY would be +2.69% vs the actual +6.41%; the gap is what cap weighting did.
By sector
point contribution · sums to +7.10 pts
-47
+7.1
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG
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Consumer Discretionary · Select Sector
What moved the market
1M · AUG 25, 2026
+6.41%
+7.1 pts · closed 117.94
25 of 47 rose · 22 fell
AMZN+12.8%
+3.1
TSLA+13.3%
+2.3
BKNG+14.4%
+0.6
ABNB+29.7%
+0.6
DASH+26.6%
+0.5
TPR−11.7%
−0.1
NKE−6.3%
−0.1
RCL−4.1%
−0.1
MAR−6.4%
−0.2
TJX−10.5%
−0.5
AMZN carried a split tape · 22 of 47 went the other wayWMTMT.COM
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