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WHAT MOVED THE MARKET TODAY

Technology · Select Sector

73 stocks · cap-weighted, ETF-derived weights · Aug 25, 2026 close
181.78
+1.73 (+0.96%)
XLK 181.78 · +1.7 pts (+0.96%) 1D
183.17182.34181.51180.68prev close 180.05EW +0.89%H 182.96 · 09:45L 180.05 · open
open11:0512:4514:2016:00
5-minute bars · index reconstructed live from member prices
Breadth
47 / 73
stocks rose with the index
Concentration
63%
of the gain from NVDA, AMD, MU
Biggest driver
NVDA +0.57
NVIDIA CORP, +2.19%
Biggest drag
PANW −0.12
PALO ALTO NETWORKS INC, −3.13%
Context
71st pctile
of the past year's sessions by daily move

What drove it

73 members · drivers first · 1D · residual 3.1bp within 60bp gate

The XLK rose 0.96% (+1.73 pts) on the day, and 63% of that gain came from just three stocks: NVDA, AMD, MU.

Read the latest market-close note: Nvidia and Goldman Sachs Lead a Narrow Advance as Energy and Staples Slide

+2.3 pts from 47 gainers0.6 pts from 26 losers
net +1.7 pts · gainers outweigh losers 3.8 to 1
Stock
Points
Return
XLKsum of all 73 stocks
+1.7
100%
+0.96%
NVDANVIDIA CORP
+0.6
33%
+2.19%
AMDADVANCED MICRO DEVICES
+0.3
20%
+4.91%
MUMICRON TECHNOLOGY INC
+0.2
10%
+2.48%
MSFTMICROSOFT CORP
+0.2
10%
+0.90%
MRVLMARVELL TECHNOLOGY INC
+0.1
7%
+4.84%
STXSEAGATE TECHNOLOGY HOLDINGS
+0.1
4%
+3.40%
LRCXLAM RESEARCH CORP
+0.1
4%
+1.45%
WDCWESTERN DIGITAL CORP
+0.1
4%
+3.53%
DELLDELL TECHNOLOGIES C
+0.1
4%
+4.17%
CDNSCADENCE DESIGN SYS INC
+0.1
3%
+5.06%
LITELUMENTUM HOLDINGS INC
+0.1
3%
+6.67%
APHAMPHENOL CORP CL A
+0.1
3%
+2.12%
ORCLORACLE CORP
+0.0
3%
+1.59%
CSCOCISCO SYSTEMS INC
+0.0
3%
+0.80%
IBMINTL BUSINESS MACHINES CORP
+0.0
2%
+1.36%
43 othersclick to expand the full index
+0.4
22%
·
ADSKAUTODESK INC
−0.0
−1%
−1.26%
FICOFAIR ISAAC CORP
−0.0
−1%
−2.52%
DDOGDATADOG INC CLASS A
−0.0
−1%
−1.23%
ADBEADOBE INC
−0.0
−1%
−0.85%
WDAYWORKDAY INC CLASS A
−0.0
−1%
−2.38%
NOWSERVICENOW INC
−0.0
−1%
−0.84%
SNDKSANDISK CORP
−0.0
−1%
−0.83%
AAPLAPPLE INC
−0.0
−2%
−0.14%
CRMSALESFORCE INC
−0.0
−2%
−1.60%
AMATAPPLIED MATERIALS INC
−0.0
−2%
−0.86%
INTUINTUIT INC
−0.0
−3%
−3.37%
AVGOBROADCOM INC
−0.1
−3%
−0.56%
CRWDCROWDSTRIKE HOLDINGS INC A
−0.1
−4%
−2.78%
PLTRPALANTIR TECHNOLOGIES INC A
−0.1
−5%
−1.80%
PANWPALO ALTO NETWORKS INC
−0.1
−7%
−3.13%
Cap weighting, illustrated

NVIDIA CORP and FLEX LTD moved almost identically (+2.19% vs +2.44%), yet NVDA moved the XLK 47.5× 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 +1.73 pt move · cell size = points contributed · color = direction, intensity = return
NVDA+0.6 pts(+2.2%)
AMD+0.3 pts(+4.9%)
MU+0.2 pts(+2.5%)
MSFT+0.2 pts(+0.9%)
MRVL+0.1 pts(+4.8%)
PANW−0.1 pts
PLTR−0.1 pts(−1.8%)
STX+0.1 pts
CRWD−0.1 pts
LRCX+0.1 pts(+1.4%)
WDC+0.1 pts(+3.5%)
DELL+0.1 pts(+4.2%)
CDNS+0.1 pts
LITE+0.1 pts
APH+0.1 pts
AVGO−0.1 pts
ORCL+0.0 pts
INTU−0.0 pts
CSCO+0.0 pts
AMAT
IBM+0.0 pts
ANET+0.0 pts
AAPL
SNPS
COHR
KLAC
CIEN
SNDK
SMCI
KEYS
ADI
CDW
NOW
INTC
FTNT

Concentration curve

cumulative share of the +1.73 pt move · sorted by contribution
0%50%100%18375573stocks:3 stocks = 63%100% covered at 11

When they drove it

cumulative points through the period
0NVDA +0.57AMD +0.35MU +0.18PANW −0.12PLTR −0.09CRWD −0.07Aug 24Aug 25

Breadth

member returns, this period
−4%0%+4%+8%
From −3.49% (IT) to +9.35% (SMCI). Equal-weight, the XLK would be +0.89% vs the actual +0.96%; the gap is what cap weighting did.

By sector

point contribution · sums to +1.73 pts
-73
+1.7

The year, session by session

every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG

Share this move

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