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 of2026-10-19 Coverage503 of 504 constituents SPX +0.43%
Stocks Up:176
Stocks Down:324
SPX Daily: +0.43%
Avg Daily:-0.34%
Avg Gain:+1.16%
Avg Decline:-1.16%
Avg Decline -1.16%Avg Daily -0.34%Avg Gain +1.16% -10%-5%+0%+5%+10% NVDA+1.38%AAPL-0.15%MSFT+0.84%AMZN+4.98%GOOGL+1.05%GOOG+0.96%AVGO+1.78%META-0.55%TSLA+3.76%LLY-1.33%MU+2.97%WMT-0.09%JPM-1.82%AMD+1.76%BRK.B+0.04%PLTR+4.36%SNDK+5.53%WDC+6.09%DDOG+5.36%TWLO+5.29%NRG-4.21%MOS-4.78% Unweighted distribution (down / up) Weighted (cap-weighted) Daily return (%)

SPX Constituents Relative Impact By Market Cap

Largest Positive Impact
Top ContributorDaily %Impact Share% Weight
AMZN+4.98%15.02%3.95%
NVDA+1.38%7.98%7.56%
TSLA+3.76%5.89%2.05%
MSFT+0.84%3.71%5.75%
MU+2.97%3.30%1.46%
AVGO+1.78%3.12%2.30%
GOOGL+1.05%2.36%2.93%
PLTR+4.36%2.09%0.63%
GOOG+0.96%2.01%2.73%
AMD+1.76%1.70%1.26%
Largest Negative Impact
Top DetractorDaily %Impact Share% Weight
JPM-1.82%1.84%1.32%
LLY-1.33%1.76%1.73%
META-0.55%0.96%2.29%
AAPL-0.15%0.85%7.34%
PM-2.02%0.72%0.47%
WFC-2.47%0.70%0.37%
BAC-1.64%0.66%0.52%
MRK-1.59%0.64%0.53%
ABBV-0.96%0.54%0.74%
C-2.07%0.49%0.31%