73 members · detractors first · QTD · residual 11.9bp within 60bp gate
The XLK fell 4.59% (−8.74 pts) so far this quarter, but 31 of 73 members went the other way. INTC and AMAT dragged the tape lower, accounting for 83% of the decline.
MICROSOFT CORP and PTC INC moved almost identically (+31.82% vs +33.03%), yet MSFT moved the XLK 79.3× 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 −8.74 pt move · cell size = points contributed · color = direction, intensity = return
MSFT+4.0 pts(+31.8%)
INTC−3.1 pts(−37.3%)
AMAT−2.3 pts(−33.6%)
KLAC−1.9 pts(−39.2%)
LRCX−1.7 pts
AAPL+1.6 pts(+7.1%)
AMD−1.6 pts(−17.5%)
PLTR+1.6 pts(+48.1%)
NVDA+1.5 pts(+6.5%)
MU−1.5 pts(−19.2%)
SNDK−1.3 pts
GLW−1.0 pts(−42.4%)
WDC−0.7 pts
IBM−0.6 pts
AVGO−0.6 pts
MRVL−0.5 pts
CRM
ACN
TXN
QCOM−0.3 pts
STX−0.3 pts
NOW+0.3 pts
ADBE+0.3 pts
APH
FLEX
DDOG
TER
NXPI
WDAY
CIEN
ON
CRWD
Concentration curve
cumulative share of the −8.74 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−50%−25%0%+25%+50%
From −42.38% (GLW) to +62.82% (CTSH). Equal-weight, the XLK would be +1.10% vs the actual −4.59%; the gap is what cap weighting did.
By sector
point contribution · sums to −8.74 pts
-73
−8.7
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG
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Technology · Select Sector
What moved the market
QTD · AUG 25, 2026
−4.59%
−8.7 pts · closed 181.78
31 of 73 rose · 42 fell
MSFT+31.8%
+4.0
AAPL+7.1%
+1.6
PLTR+48.1%
+1.6
NVDA+6.5%
+1.5
CRM+31.3%
+0.5
AMD−17.5%
−1.6
LRCX−27.4%
−1.7
KLAC−39.2%
−1.9
AMAT−33.6%
−2.3
INTC−37.3%
−3.1
INTC sank a split tape · 31 of 73 went the other wayWMTMT.COM
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