+1,421.2 pts from 269 gainers−390.7 pts from 234 losers
net +1,057.8 pts · gainers outweigh losers 3.6 to 1
Stock
Points
Share
Return
S&P 500sum of all 503 stocks
+1,057.8
100%
+15.66%
NVDANVIDIA CORP
+152.1
14%
+21.39%
AAPLAPPLE INC
+125.9
12%
+30.82%
MUMICRON TECHNOLOGY INC
+110.4
10%
+424.01%
AMDADVANCED MICRO DEVICES
+74.5
7%
+158.15%
GOOGLALPHABET INC CL A
+67.8
6%
+44.04%
GOOGALPHABET INC CL C
+53.5
5%
+42.00%
AMZNAMAZON.COM INC
+51.7
5%
+16.52%
MSFTMICROSOFT CORP
+29.2
3%
+2.60%
INTCINTEL CORP
+29.1
3%
+179.72%
AMATAPPLIED MATERIALS INC
+26.0
2%
+134.17%
SNDKSANDISK CORP
+24.9
2%
+1,099.44%
LRCXLAM RESEARCH CORP
+23.6
2%
+124.47%
LLYELI LILLY + CO
+23.0
2%
+40.05%
CSCOCISCO SYSTEMS INC
+20.8
2%
+70.14%
JNJJOHNSON + JOHNSON
+20.1
2%
+40.24%
473 othersclick to expand the full index
+362.8
34%
·
ADBEADOBE INC
−5.3
0%
−30.54%
MNSTMONSTER BEVERAGE CORP
−5.4
−1%
−36.51%
COINCOINBASE GLOBAL INC CLASS A
−5.6
−1%
−53.68%
BRK-BBERKSHIRE HATHAWAY INC CL B
−5.8
−1%
+3.12%
UBERUBER TECHNOLOGIES INC
−7.2
−1%
−27.98%
ABTABBOTT LABORATORIES
−7.6
−1%
−24.58%
IBMINTL BUSINESS MACHINES CORP
−8.9
−1%
−20.07%
BSXBOSTON SCIENTIFIC CORP
−9.0
−1%
−55.84%
INTUINTUIT INC
−9.4
−1%
−53.65%
HDHOME DEPOT INC
−9.5
−1%
−22.65%
APHAMPHENOL CORP CL A
−9.7
−1%
−30.31%
APPAPPLOVIN CORP CLASS A
−11.4
−1%
−56.00%
TSLATESLA INC
−18.0
−2%
−12.76%
NFLXNETFLIX INC
−24.1
−2%
−42.10%
ORCLORACLE CORP
−28.1
−3%
−50.30%
Cap weighting, illustrated
NVIDIA CORP and BIO TECHNE CORP moved almost identically (+21.39% vs +20.19%), yet NVDA moved the S&P 500 1,114.1× 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 +1,058 pt move · cell size = points contributed · color = direction, intensity = return
NVDA+152.1 pts(+21.4%)
AAPL+125.9 pts(+30.8%)
MU+110.4 pts(+424.0%)
AMD+74.5 pts(+158.2%)
GOOGL+67.8 pts(+44.0%)
GOOG+53.5 pts(+42.0%)
AMZN+51.7 pts(+16.5%)
MSFT
INTC
ORCL−28.1 pts(−50.3%)
AMAT+26.0 pts
SNDK+24.9 pts(+1,099.4%)
NFLX−24.1 pts(−42.1%)
LRCX+23.6 pts
LLY+23.0 pts
CSCO+20.8 pts
JNJ
TSLA
MRK
PANW
MRVL+15.2 pts
CAT+14.6 pts
DELL
CVX
KO
ABBV
PM
WDC
XOM
APH
INTU
TXN
LITE
IBM
MPC
ADI
ABT
AMGN
MRNA
COP
HPE
ANET
GILD
Concentration curve
cumulative share of the +1,058 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−100%+100%+300%+500%+700%+900%
From −63.93% (FISV) to +1,099.44% (SNDK). Equal-weight, the S&P 500 would be +15.51% vs the actual +15.66%; the gap is what cap weighting did.
By sector
point contribution · sums to +1,058 pts
-503
+1,030.4
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT
Share this move
pick a view, download it as a 16:9 PNG
S&P 500
What moved the market
1Y · OCT 9, 2026
+15.66%
+1,057.8 pts · closed 7,811.54
303 of 503 rose · 200 fell
NVDA+21.4%
+152.1
AAPL+30.8%
+125.9
MU+424.0%
+110.4
AMD+158.2%
+74.5
GOOGL+44.0%
+67.8
APH−30.3%
−9.7
APP−56.0%
−11.4
TSLA−12.8%
−18.0
NFLX−42.1%
−24.1
ORCL−50.3%
−28.1
Mixed tape · top 3 drove 37% of the gainWMTMT.COM
view 1 of 6
Cycle through the views and download any of them as a 16:9 PNG sized for X. Pasting the page link on X unfurls a server-rendered card on its own.
www.wmtmt.com/spx?p=1y
Share on X copies the image to your clipboard and opens the composer; paste to attach it.
What moved the market, in your inbox
The daily note publishes here after every close; the week's story lands in your inbox on Fridays, free. Read the daily notes.
Babylon Burns
WMTMT is built by the founders of Babylon Burns, a letter on markets, macro, and the systems behind them. The numbers live here; the arguments live there. Subscribing below joins the Babylon Burns letter.