How do you read Market breadth?

It shows whether a move in the index is broad or driven by a few large companies. An index can rise while most companies fall, if the very largest rise.

Market breadth

Market and results

How many companies rose and how many fell on a day.

How it is worked out

Among the 600 largest US companies, the count of those that closed up, down and about unchanged.

How to read it

It shows whether a move in the index is broad or driven by a few large companies.
An index can rise while most companies fall, if the very largest rise.

Example

380 up, 200 down, 20 unchanged: a day on which most rose.

Related terms

S&P 500The index of about 500 of the largest listed US companies, the usual yardstick for the US market.
SectorThe group of companies with the same core business, such as technology, healthcare or energy.

The other pages on US stocks, free to read. On the company pages, the last three fiscal years are open to everyone, five with a free account, and every year with Ploutos Investor.

US stocksThe market today, the sectors, the largest companies and the week's results.The market's sectorsThe 11 sectors side by side: returns, share of the market, median P/E and dividend.Compare stocksTwo companies side by side: price over up to ten years, with and without dividends, and every figure.US dividend stocksEach dividend's yield next to whether the company's cash covers it and whether it was ever cut.

Explanations of terms for learning, with examples from SEC filings.