SPX Market Breadth

Distribution of constituent daily returns vs. their cap-weighted contribution to the index. Where the curves diverge, the index is being pushed by names that are out of sync with the broader market.

As of2026-10-06 Coverage502 of 504 constituents SPX +0.60%
Stocks Up:338
Stocks Down:163
SPX Daily: +0.60%
Avg Daily:+0.59%
Avg Gain:+1.42%
Avg Decline:-1.14%
Avg Decline -1.14%Avg Daily +0.59%Avg Gain +1.42% -10%-5%+0%+5%+10% NVDA+0.14%AAPL+0.22%MSFT+0.78%AMZN+1.95%GOOGL+0.35%GOOG+0.22%AVGO+3.67%META-0.41%TSLA+0.51%MU-1.73%LLY+1.26%AMD+2.80%JPM-0.33%WMT+2.03%BRK.B+0.25%STX-9.18%WDC-6.93%CEG+12.25%MRNA-7.75%CIEN+13.85%VST+10.77%ILMN-6.86%NRG+7.02% Unweighted distribution (down / up) Weighted (cap-weighted) Daily return (%)

SPX Constituents Relative Impact By Market Cap

Largest Positive Impact
Top ContributorDaily %Impact Share% Weight
AVGO+3.67%7.70%2.50%
AMZN+1.95%6.40%3.92%
MSFT+0.78%3.71%5.64%
AMD+2.80%3.50%1.49%
CSCO+4.54%2.45%0.64%
WMT+2.03%2.05%1.20%
MRVL+5.81%1.68%0.34%
LLY+1.26%1.64%1.56%
CEG+12.25%1.41%0.14%
AAPL+0.22%1.31%7.02%
Largest Negative Impact
Top DetractorDaily %Impact Share% Weight
MU-1.73%2.52%1.74%
INTC-3.19%2.27%0.85%
STX-9.18%2.25%0.29%
LRCX-3.43%1.80%0.63%
KLAC-4.54%1.49%0.39%
WDC-6.93%1.28%0.22%
AMAT-2.21%1.16%0.62%
TMO-2.98%0.91%0.36%
META-0.41%0.81%2.36%
SNDK-2.56%0.78%0.36%