S&P 500 · WMTMT

Jul 13Aug 4Aug 26Sep 17Oct 9

Breadth

200 / 503

stocks rose with the index

Concentration

80%

of the gain from MSFT, NVDA, AAPL

Biggest driver

MSFT +120

MICROSOFT CORP, +37.11%

Biggest drag

APH −20

AMPHENOL CORP CL A, −44.11%

What drove it

503 members · drivers first · 3M · residual 21.7bp within 60bp gate

The S&P 500 rose 3.94% (+296 pts) over the past three months, but 303 of 503 members went the other way. MSFT and NVDA carried the tape higher, accounting for 80% of the gain.

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

+549.7 pts from 205 gainers−275.6 pts from 298 losers

net +296.2 pts · gainers outweigh losers 2.0 to 1

Stock

Points

Return

S&P 500sum of all 503 stocks

+296.2

+3.94%

MSFTMICROSOFT CORP

+119.8

+37.11%

NVDANVIDIA CORP

+76.7

+12.65%

AAPLAPPLE INC

+39.8

+6.18%

PLTRPALANTIR TECHNOLOGIES INC A

+19.7

+60.76%

AMZNAMAZON.COM INC

+16.1

+6.11%

METAMETA PLATFORMS INC CLASS A

+15.7

+9.43%

AMDADVANCED MICRO DEVICES

+14.5

+13.79%

XOMEXXONMOBIL HOLDINGS CORP

+12.2

+17.70%

CRWDCROWDSTRIKE HOLDINGS INC A

+9.5

+46.37%

MUMICRON TECHNOLOGY INC

+8.5

+9.82%

PANWPALO ALTO NETWORKS INC

+7.7

+26.79%

CVXCHEVRON CORP

+7.2

+17.35%

ABBVABBVIE INC

+6.3

+12.26%

MRKMERCK + CO. INC.

+6.3

+17.39%

MRNAMODERNA INC

+6.3

+235.77%

473 othersclick to expand the full index

+15.4

BACBANK OF AMERICA CORP

−3.8

−8.72%

MSMORGAN STANLEY

−4.2

−13.59%

TSLATESLA INC

−4.5

−3.06%

KLACKLA CORP

−4.6

−11.91%

HDHOME DEPOT INC

−5.1

−13.76%

GEGENERAL ELECTRIC

−5.2

−12.79%

APPAPPLOVIN CORP CLASS A

−5.3

−37.44%

UNHUNITEDHEALTH GROUP INC

−5.4

−11.60%

GSGOLDMAN SACHS GROUP INC

−5.5

−14.40%

IBMINTL BUSINESS MACHINES CORP

−6.1

−21.18%

CATCATERPILLAR INC

−7.1

−13.90%

AMATAPPLIED MATERIALS INC

−7.5

−11.79%

WDCWESTERN DIGITAL CORP

−7.5

−28.49%

AVGOBROADCOM INC

−15.6

−5.86%

APHAMPHENOL CORP CL A

−20.0

−44.11%

Cap weighting, illustrated

NVIDIA CORP and FOX CORP CLASS B moved almost identically (+12.65% vs +11.29%), yet NVDA moved the S&P 500 834.2× 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 +296 pt move · cell size = points contributed · color = direction, intensity = return

MSFT+119.8 pts(+37.1%)

NVDA+76.7 pts(+12.7%)

AAPL+39.8 pts(+6.2%)

383 more−26.8 pts

APH−20.0 pts

PLTR+19.7 pts

AMZN

META+15.7 pts(+9.4%)

AVGO−15.6 pts(−5.9%)

AMD+14.5 pts(+13.8%)

XOM+12.2 pts(+17.7%)

CRWD+9.5 pts

PANW

WDC

CAT−7.1 pts

ABBV+6.3 pts

MRNA+6.3 pts

IBM−6.1 pts

CRM

APP

ACN

MPC

VLO

KLAC

TSLA

PSX

AMGN

AXP

MCD

LITE

CVS

NEM

SNDK

TMUS

LRCX

Concentration curve

cumulative share of the +296 pt move · sorted by contribution

When they drove it

cumulative points through the period

Breadth

member returns, this period

−50%0%+50%+100%+150%+200%

From −47.76% (FICO) to +235.77% (MRNA). Equal-weight, the S&P 500 would be +0.20% vs the actual +3.94%; the gap is what cap weighting did.

By sector

point contribution · sums to +296 pts

-503

+274.1

The year, session by session

every trading day of 2026 · hover for the move

JANFEBMARAPRMAYJUNJULAUGSEPOCT

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