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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
−26.51 (−11.77%)
XLK 198.78 · −26.5 pts (−11.77%) 2Y
495.21397.27299.33201.39103.44EW +108.92%H 304.13 · Oct 29L 127.50 · Mar 30
Oct 4, 2024Apr 8, 2025Oct 9, 2025Apr 10, 2026Oct 9, 2026
Breadth
20 / 75
stocks fell with the index
Concentration
19%
of the decline from ADBE, ACN, ORCL
Biggest driver
ADBE −2.03
ADOBE INC, −52.24%
Biggest offset
NVDA +15.48
NVIDIA CORP, +83.82%

What drove it

75 members · detractors first · 2Y · residual 6693.4bp exceeds 60bp gate

The XLK fell 11.77% (−26.51 pts) over two years, but 55 of 75 members went the other way. ADBE and ACN dragged the tape lower, accounting for 19% of the decline.

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

+128.3 pts from 51 gainers−10.8 pts from 24 losers
net −26.5 pts · gainers outweigh losers 11.9 to 1
Stock
Points
Return
XLKsum of all 75 stocks
−26.5
100%
−11.77%
ADBEADOBE INC
−2.0
8%
−52.24%
ACNACCENTURE PLC CL A
−1.5
6%
−39.99%
ORCLORACLE CORP
−1.4
5%
−15.13%
CRMSALESFORCE INC
−1.0
4%
−19.33%
INTUINTUIT INC
−1.0
4%
−49.75%
NOWSERVICENOW INC
−0.9
4%
−23.26%
ITGARTNER INC
−0.5
2%
−61.96%
ROPROPER TECHNOLOGIES INC
−0.3
1%
−32.36%
FICOFAIR ISAAC CORP
−0.3
1%
−65.10%
CDWCDW CORP/DE
−0.3
1%
−33.97%
SMCISUPER MICRO COMPUTER INC
−0.2
1%
+1.52%
WDAYWORKDAY INC CLASS A
−0.2
1%
−23.01%
MSIMOTOROLA SOLUTIONS INC
−0.2
1%
+0.49%
TYLTYLER TECHNOLOGIES INC
−0.2
1%
−43.15%
SNPSSYNOPSYS INC
−0.2
1%
+2.18%
45 othersclick to expand the full index
+27.7
105%
·
STXSEAGATE TECHNOLOGY HOLDINGS
+2.8
−10%
+651.55%
CRWDCROWDSTRIKE HOLDINGS INC A
+3.0
−11%
+276.46%
SNDKSANDISK CORP
+3.3
−13%
+3,154.77%
APHAMPHENOL CORP CL A
+3.4
−13%
+41.61%
MSFTMICROSOFT CORP
+3.9
−15%
+30.39%
AMATAPPLIED MATERIALS INC
+4.2
−16%
+154.80%
CSCOCISCO SYSTEMS INC
+4.4
−17%
+132.78%
LRCXLAM RESEARCH CORP
+4.6
−17%
+296.47%
PLTRPALANTIR TECHNOLOGIES INC A
+7.2
−27%
+422.49%
INTCINTEL CORP
+7.9
−30%
+363.48%
AMDADVANCED MICRO DEVICES
+8.0
−30%
+255.82%
MUMICRON TECHNOLOGY INC
+9.6
−36%
+912.63%
AVGOBROADCOM INC
+10.3
−39%
+107.83%
AAPLAPPLE INC
+12.0
−45%
+49.53%
NVDANVIDIA CORP
+15.5
−58%
+83.82%
Cap weighting, illustrated

MICROSOFT CORP and QNITY ELECTRONICS INC moved almost identically (+30.39% vs +30.85%), yet MSFT moved the XLK 386.5× 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 −26.51 pt move · cell size = points contributed · color = direction, intensity = return
NVDA+15.5 pts(+83.8%)
AAPL+12.0 pts(+49.5%)
AVGO+10.3 pts(+107.8%)
MU+9.6 pts(+912.6%)
AMD+8.0 pts(+255.8%)
INTC+7.9 pts(+363.5%)
PLTR+7.2 pts(+422.5%)
LRCX+4.6 pts(+296.5%)
CSCO+4.4 pts(+132.8%)
AMAT+4.2 pts(+154.8%)
MSFT+3.9 pts(+30.4%)
APH+3.4 pts
SNDK+3.3 pts
CRWD+3.0 pts
STX+2.8 pts
PANW+2.4 pts
WDC+2.2 pts
ANET+2.1 pts
KLAC
MRVL+2.0 pts
ADBE−2.0 pts
IBM
DELL
ADI
ACN
ORCL
TXN+1.2 pts
GLW
LITE
CRM
INTU
HPE
DDOG
IT

Concentration curve

cumulative share of the −26.51 pt move · sorted by contribution
0%50%100%19385675stocks:3 stocks = 19%100% covered at 75

When they drove it

cumulative points through the period
0ADBE −2.03ACN −1.49ORCL −1.43NVDA +15.48AAPL +12.02AVGO +10.34Oct 4Oct 9

Breadth

member returns, this period
−100%+100%+300%+500%+700%+900%+1,100%+1,300%+1,500%+1,700%+1,900%+2,100%+2,300%+2,500%+2,700%+2,900%+3,100%
From −65.10% (FICO) to +3,154.77% (SNDK). Equal-weight, the XLK would be +108.92% vs the actual −11.77%; the gap is what cap weighting did.

By sector

point contribution · sums to −26.51 pts
-75
+117.5

The year, session by session

every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT

Share this move

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SESSIONSETTLEDBOARDXLK 2YMEMBERS75RESIDUAL6693.4BP / 60BP GATESRCNASDAQ · CBOE · ALPHA VANTAGEWMTMT.COM