Source: https://mochatrade.com/learn/glossary/market-breadth

# Market breadth
URL: https://mochatrade.com/learn/glossary/market-breadth
Last modified: 2026-10-17

Market breadth is how many stocks are taking part in a move: advancers against decliners, new highs against new lows, the equal-weight index against the normal one. A market-value-weighted index can rise on a few giants while [238 stocks hit a one-year low against 53 at a high](https://mochatrade.com/blog/mocha-markets-weekly-dec). Breadth tells you whether [the index you see](https://mochatrade.com/learn/us-market-structure/us-stock-market-explained) is the market you own.

## Related terms

- Magnificent 7: https://mochatrade.com/learn/glossary/magnificent-7
- Market correction: https://mochatrade.com/learn/glossary/market-correction
- 52-week high and low: https://mochatrade.com/learn/glossary/52-week-high-and-low
- Market capitalization: https://mochatrade.com/learn/glossary/market-capitalization
- Bid-ask spread: https://mochatrade.com/learn/glossary/bid-ask-spread
- PCE: https://mochatrade.com/learn/glossary/pce