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WHAT MOVED THE MARKET TODAY

Technology · Select Sector

75 stocks · cap-weighted, ETF-derived weights · Oct 9, 2026 close
198.78
+56.16 (+39.38%)
XLK 198.78 · +56.2 pts (+39.38%) 6M
214.36195.25176.14157.03EW +45.76%H 202.00 · Oct 6L 142.62 · Apr 10
Apr 10May 27Jul 13Aug 26Oct 9
Breadth
63 / 75
stocks rose with the index
Concentration
33%
of the gain from AMD, MU, AAPL
Biggest driver
AMD +7.08
ADVANCED MICRO DEVICES, +148.16%
Biggest drag
INTU −0.35
INTUIT INC, −13.73%

What drove it

75 members · drivers first · 6M · residual 236.9bp exceeds 60bp gate

The XLK rose 39.38% (+56.16 pts) over the past six months in a broad advance: 63 of 75 stocks rose, with AMD out front at +7.08 points.

Read the latest market-close note: Goldman and Microsoft Push the Dow to a Large Gain While Telecoms Sink Communication Services

+57.2 pts from 60 gainers−1.2 pts from 15 losers
net +56.2 pts · gainers outweigh losers 47.7 to 1
Stock
Points
Return
XLKsum of all 75 stocks
+56.2
100%
+39.38%
AMDADVANCED MICRO DEVICES
+7.1
13%
+148.16%
MUMICRON TECHNOLOGY INC
+5.8
10%
+144.66%
AAPLAPPLE INC
+5.7
10%
+29.36%
MSFTMICROSOFT CORP
+5.4
10%
+44.59%
NVDANVIDIA CORP
+4.6
8%
+21.69%
INTCINTEL CORP
+2.9
5%
+67.84%
PANWPALO ALTO NETWORKS INC
+2.3
4%
+168.91%
CRWDCROWDSTRIKE HOLDINGS INC A
+2.0
4%
+190.26%
PLTRPALANTIR TECHNOLOGIES INC A
+1.8
3%
+63.24%
CSCOCISCO SYSTEMS INC
+1.8
3%
+43.99%
SNDKSANDISK CORP
+1.7
3%
+85.71%
MRVLMARVELL TECHNOLOGY INC
+1.6
3%
+114.24%
DELLDELL TECHNOLOGIES C
+1.5
3%
+230.69%
STXSEAGATE TECHNOLOGY HOLDINGS
+1.2
2%
+55.74%
AMATAPPLIED MATERIALS INC
+1.1
2%
+27.08%
45 othersclick to expand the full index
+10.6
19%
·
KLACKLA CORP
−0.0
0%
+12.72%
TDYTELEDYNE TECHNOLOGIES INC
−0.0
0%
−4.89%
TYLTYLER TECHNOLOGIES INC
−0.0
0%
+3.82%
ADSKAUTODESK INC
−0.0
0%
+7.74%
TRMBTRIMBLE INC
−0.0
0%
−7.23%
CTSHCOGNIZANT TECH SOLUTIONS A
−0.0
0%
+2.87%
FSLRFIRST SOLAR INC
−0.0
0%
−12.61%
QQNITY ELECTRONICS INC
−0.0
0%
−2.98%
GLWCORNING INC
−0.0
0%
−8.37%
IBMINTL BUSINESS MACHINES CORP
−0.1
0%
−0.85%
TELTE CONNECTIVITY PLC
−0.1
0%
−4.62%
FICOFAIR ISAAC CORP
−0.1
0%
−27.60%
ADBEADOBE INC
−0.1
0%
+7.51%
APHAMPHENOL CORP CL A
−0.3
0%
−37.96%
INTUINTUIT INC
−0.4
−1%
−13.73%
Cap weighting, illustrated

APPLE INC and GEN DIGITAL INC moved almost identically (+29.36% vs +30.63%), yet AAPL moved the XLK 543.5× 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 +56.16 pt move · cell size = points contributed · color = direction, intensity = return
AMD+7.1 pts(+148.2%)
MU+5.8 pts(+144.7%)
AAPL+5.7 pts(+29.4%)
MSFT+5.4 pts(+44.6%)
NVDA+4.6 pts(+21.7%)
INTC+2.9 pts(+67.8%)
PANW+2.3 pts(+168.9%)
CRWD+2.0 pts(+190.3%)
PLTR+1.8 pts(+63.2%)
CSCO+1.8 pts
SNDK+1.7 pts
MRVL+1.6 pts
DELL+1.5 pts(+230.7%)
STX+1.2 pts(+55.7%)
AMAT+1.1 pts
ANET+1.1 pts
QCOM+1.1 pts
LRCX+0.8 pts
TXN+0.8 pts
HPE+0.7 pts
FTNT+0.7 pts
WDC
DDOG
NOW
INTU
CDNS
AVGO
APH

Concentration curve

cumulative share of the +56.16 pt move · sorted by contribution
0%50%100%19385675stocks:3 stocks = 33%100% covered at 39

When they drove it

cumulative points through the period
0AMD +7.08MU +5.77AAPL +5.65INTU −0.35APH −0.27ADBE −0.12Apr 10Oct 9

Breadth

member returns, this period
−50%0%+50%+100%+150%+200%
From −37.96% (APH) to +230.69% (DELL). Equal-weight, the XLK would be +45.76% vs the actual +39.38%; the gap is what cap weighting did.

By sector

point contribution · sums to +56.16 pts
-75
+56.0

The year, session by session

every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT

Share this move

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