22 members · detractors first · 6M · residual 104.6bp exceeds 60bp gate
The XLC fell 3.15% (−3.59 pts) over the past six months, but 11 of 22 members went the other way. APP and CHTR dragged the tape lower, contributing more than the entire move.
META PLATFORMS INC CLASS A and NEWS CORP CLASS B moved almost identically (+14.20% vs +13.27%), yet META moved the XLC 439.5× 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 −3.59 pt move · cell size = points contributed · color = direction, intensity = return
META+4.4 pts(+14.2%)
APP−3.4 pts(−29.2%)
GOOGL+3.0 pts(+10.9%)
CHTR−2.7 pts(−52.8%)
NFLX−2.4 pts(−31.8%)
GOOG+2.2 pts(+10.2%)
TMUS−1.9 pts(−23.7%)
CMCSA−1.7 pts(−25.0%)
RDDT−1.5 pts(−20.2%)
T−1.1 pts(−16.2%)
VZ−0.8 pts
TTWO+0.4 pts
TKO
SKYD
OMC
DIS
Concentration curve
cumulative share of the −3.59 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−60%−40%−20%0%
From −52.76% (CHTR) to +18.95% (NWSA). Equal-weight, the XLC would be −6.05% vs the actual −3.15%; the gap is what cap weighting did.
By sector
point contribution · sums to −3.59 pts
-22
−5.6
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT
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Communication Services · Select Sector
What moved the market
6M · OCT 9, 2026
−3.15%
−3.6 pts · closed 110.36
11 of 22 rose · 11 fell
META+14.2%
+4.4
GOOGL+10.9%
+3.0
GOOG+10.2%
+2.2
TTWO+8.3%
+0.4
OMC+3.4%
+0.2
CMCSA−25.0%
−1.7
TMUS−23.7%
−1.9
NFLX−31.8%
−2.4
CHTR−52.8%
−2.7
APP−29.2%
−3.4
APP sank a split tape · 11 of 22 went the other wayWMTMT.COM
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