SPX Market Breadth — MBAD

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 of2026-05-18 Resolved503 / 504 SPX -0.09%
Stocks Up:359
Stocks Down:142
SPX Daily: -0.09%
Avg Daily:+0.80%
Avg Gain:+1.84%
Avg Decline:-1.81%
Avg Decline -1.81%Avg Daily +0.80%Avg Gain +1.84% -10%-5%+0%+5%+10% NVDA-1.33%AAPL-0.80%MSFT+0.38%AMZN+0.27%GOOGL+0.03%GOOG-0.04%AVGO-1.05%TSLA-2.90%META-0.49%WMT+1.44%LLY-1.67%MU-5.95%JPM+0.98%AMD-0.73%BRK.B+1.18%VRT-8.41%NOW+8.78%LITE-8.83%REGN-9.82%D+9.44%FICO+7.58%CTSH+9.05%EPAM+7.98% Unweighted distribution (down / up) Weighted (cap-weighted) Daily return (%)

SPX Constituents Relative Impact By Market Cap

Largest Positive Impact
Top ContributorDaily %Impact Share% Weight
WMT+1.44%1.55%1.59%
COST+2.62%1.26%0.71%
MSFT+0.38%1.24%4.76%
V+2.12%1.18%0.82%
NFLX+3.06%1.15%0.56%
XOM+1.63%1.10%0.99%
MA+2.35%1.05%0.66%
CVX+2.63%1.03%0.58%
NOW+8.78%0.89%0.15%
BRK.B+1.18%0.82%1.02%
Largest Negative Impact
Top DetractorDaily %Impact Share% Weight
NVDA-1.33%7.48%8.28%
MU-5.95%5.00%1.24%
TSLA-2.90%4.73%2.41%
AAPL-0.80%3.61%6.69%
AVGO-1.05%2.18%3.06%
AMAT-5.28%1.88%0.53%
ORCL-3.29%1.88%0.84%
LLY-1.67%1.63%1.44%
STX-6.87%1.26%0.27%
VRT-8.41%1.23%0.22%