S&P 500 · WMTMT

Aug 19Aug 20Aug 21Aug 24Aug 25

30-minute bars · index reconstructed live from member prices

Breadth

231 / 503

stocks fell with the index

Concentration

100%+

of the decline from NVDA, AVGO, INTC

Biggest driver

NVDA −18

NVIDIA CORP, −3.04%

Biggest offset

MSFT +10

MICROSOFT CORP, +2.29%

What drove it

503 members · detractors first · 1W · residual 0.7bp within 60bp gate

The S&P 500 fell 0.19% (−14 pts) on the week, but 272 of 503 members went the other way. NVDA and AVGO dragged the tape lower, contributing more than the entire move.

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

+111.6 pts from 267 gainers−126.0 pts from 236 losers

net −14.5 pts · losers outweigh gainers 1.1 to 1

Stock

Points

Return

S&P 500sum of all 503 stocks

−14.5

−0.19%

NVDANVIDIA CORP

−18.0

−3.04%

AVGOBROADCOM INC

−13.1

−6.12%

INTCINTEL CORP

−5.3

−9.52%

WMTWALMART INC

−5.0

−8.31%

PANWPALO ALTO NETWORKS INC

−3.5

−9.15%

CRWDCROWDSTRIKE HOLDINGS INC A

−3.4

−12.93%

AMATAPPLIED MATERIALS INC

−3.2

−6.57%

GEGENERAL ELECTRIC

−3.0

−6.82%

SNDKSANDISK CORP

−2.6

−8.92%

XOMEXXONMOBIL HOLDINGS CORP

−2.6

−2.98%

GEVGE VERNOVA INC

−2.6

−7.83%

RTXRTX CORP

−2.4

−6.74%

STXSEAGATE TECHNOLOGY HOLDINGS

−2.0

−9.08%

JPMJPMORGAN CHASE + CO

−1.9

−1.80%

LRCXLAM RESEARCH CORP

−1.8

−4.04%

473 othersclick to expand the full index

+3.2

TMOTHERMO FISHER SCIENTIFIC INC

+1.7

+6.64%

AMZNAMAZON.COM INC

+1.7

+0.62%

HOODROBINHOOD MARKETS INC A

+1.8

+22.46%

GOOGLALPHABET INC CL A

+1.9

+0.80%

NFLXNETFLIX INC

+2.2

+5.73%

FCXFREEPORT MCMORAN INC

+2.2

+20.48%

NEMNEWMONT CORP

+2.3

+16.52%

MRVLMARVELL TECHNOLOGY INC

+2.4

+11.29%

MAMASTERCARD INC A

+2.4

+4.34%

MRNAMODERNA INC

+3.4

+152.27%

VVISA INC CLASS A SHARES

+3.9

+5.42%

TSLATESLA INC

+4.0

+3.97%

MRKMERCK + CO. INC.

+5.9

+15.74%

METAMETA PLATFORMS INC CLASS A

+7.0

+4.85%

MSFTMICROSOFT CORP

+9.9

+2.29%

Cap weighting, illustrated

MICROSOFT CORP and PARAMOUNT SKYDANCE CL B moved almost identically (+2.29% vs +2.30%), yet MSFT moved the S&P 500 985.9× 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 −14 pt move · cell size = points contributed · color = direction, intensity = return

NVDA−18.0 pts(−3.0%)

AVGO−13.1 pts(−6.1%)

MSFT+9.9 pts(+2.3%)

META+7.0 pts(+4.9%)

MRK+5.9 pts(+15.7%)

INTC−5.3 pts(−9.5%)

WMT−5.0 pts(−8.3%)

TSLA+4.0 pts

V+3.9 pts

PANW−3.5 pts(−9.2%)

CRWD−3.4 pts(−12.9%)

MRNA+3.4 pts(+152.3%)

383 more+3.2 pts

AMAT−3.2 pts

SNDK−2.6 pts

XOM−2.6 pts

GEV−2.6 pts

RTX−2.4 pts

NEM+2.3 pts

FCX

NFLX

JPM

GOOGL

LRCX

AMZN+1.7 pts

WDC−1.7 pts

PWR

TMO

ABBV

HWM

UBER

BAC

TXN

AMGN

DHR

PGR

CVX

ACN

DDOG

CVNA

PFE

ISRG

VRT

UNP

NOC

CMI

Concentration curve

cumulative share of the −14 pt move · sorted by contribution

When they drove it

cumulative points through the period

Breadth

member returns, this period

−25%+25%+75%+125%

From −13.31% (PWR) to +152.27% (MRNA). Equal-weight, the S&P 500 would be +0.81% vs the actual −0.19%; the gap is what cap weighting did.

By sector

point contribution · sums to −14 pts

-503

−14.5

The year, session by session

every trading day of 2026 · hover for the move

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