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 of2026-10-20 Coverage503 of 504 constituents SPX +0.30%
Stocks Up:404
Stocks Down:99
SPX Daily: +0.30%
Avg Daily:+1.14%
Avg Gain:+1.70%
Avg Decline:-1.15%
Avg Decline -1.15%Avg Daily +1.14%Avg Gain +1.70% -10%-5%+0%+5%+10% NVDA-0.29%AAPL-1.00%MSFT-0.31%AMZN+0.07%GOOGL-1.13%GOOG-1.11%AVGO-0.07%META-1.63%TSLA+1.54%LLY+3.49%MU-0.98%WMT-0.72%JPM+0.52%AMD-0.62%BRK.B+1.43%MRNA+6.69%MMM+5.78%GM-6.84%EFX+11.33%CRL+5.14%HAS+11.20%IT+5.74%DVA-6.23% Unweighted distribution (down / up) Weighted (cap-weighted) Daily return (%)

SPX Constituents Relative Impact By Market Cap

Largest Positive Impact
Top ContributorDaily %Impact Share% Weight
LLY+3.49%5.24%1.70%
TSLA+1.54%2.87%2.12%
JNJ+2.19%1.72%0.89%
MRK+3.25%1.48%0.52%
ABBV+2.26%1.45%0.73%
UNH+3.04%1.43%0.53%
BRK.B+1.43%1.37%1.09%
AMGN+3.29%0.97%0.34%
V+0.91%0.80%1.00%
MRNA+6.69%0.78%0.13%
Largest Negative Impact
Top DetractorDaily %Impact Share% Weight
AAPL-1.00%6.45%7.30%
META-1.63%3.26%2.27%
GOOGL-1.13%2.94%2.95%
GOOG-1.11%2.67%2.74%
NVDA-0.29%1.92%7.63%
MSFT-0.31%1.57%5.78%
GE-3.67%1.52%0.47%
LRCX-3.21%1.41%0.50%
MU-0.98%1.28%1.49%
WMT-0.72%0.87%1.37%