Tesla, Inc. and DoorDash, Inc. moved almost identically (−14.90% vs −13.24%), yet TSLA moved the NASDAQ 100 1,131.2× 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 +5,633 pt move · cell size = points contributed · color = direction, intensity = return
AAPL+1,454.9 pts(+24.1%)
MSFT+882.7 pts(+11.1%)
AMZN+480.2 pts(+13.7%)
NVDA−444.8 pts(+23.1%)
MU+428.5 pts(+260.7%)
GOOGL+345.9 pts
TSLA−278.2 pts(−14.9%)
AMD+241.4 pts(+183.9%)
GOOG+239.0 pts(+11.0%)
INTC+189.8 pts(+183.7%)
PANW+180.7 pts(+127.4%)
PLTR+167.6 pts(+17.6%)
CRWD+127.3 pts
SNDK+117.4 pts
CSCO
MNST
AVGO−82.2 pts
FTNT+77.4 pts
STX
DDOG
COST
ARM
META
SPCX
SHOP
INTU
MRVL
KLAC
LRCX
WDC
GILD
LITE
Concentration curve
cumulative share of the +5,633 pt move · sorted by contribution
When they drove it
cumulative points through the period
Breadth
member returns, this period
−100%+100%+300%+500%
From −58.89% (APP) to +662.97% (MRNA). Equal-weight, the NASDAQ 100 would be +34.68% vs the actual +22.31%; the gap is what cap weighting did.
By sector
point contribution · sums to +5,633 pts
Unknown101
+4,623.0
The year, session by session
every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT
Share this move
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Nasdaq-100
What moved the market
YTD · OCT 9, 2026
+22.31%
+5,633.3 pts · closed 30,883.15
67 of 101 rose · 34 fell
AAPL+24.1%
+1,454.9
MSFT+11.1%
+882.7
AMZN+13.7%
+480.2
MU+260.7%
+428.5
GOOGL+12.5%
+345.9
APP−58.9%
−60.2
AVGO+4.8%
−82.2
MNST−43.1%
−88.2
TSLA−14.9%
−278.2
NVDA+23.1%
−444.8
Mixed tape · top 3 drove 50% of the gainWMTMT.COM
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