About BreadthMarket
Beneath the index.
BreadthMarket is an independent dashboard for understanding participation across the S&P 500's 11 sectors.
Why look beneath the index?
An index can rise while gains are concentrated in a small group of companies. Market breadth adds perspective by showing how widely individual stocks participate. BreadthMarket brings that view together across sectors and over time.
What you can explore
- Daily breadth. Follow the latest Breadth Score and participation reading.
- Sector participation. See which sectors show broader strength or weakness.
- Historical context. Explore changes over time and where the current reading sits within its recent history.
For metric definitions and calculation rules, read our methodology.