Definition
A stock index of 30 large US companies, weighted by share price rather than company size.
The story
Because it's weighted by price, a company with a $500 share moves the Dow far more than one with a $50 share, even if the cheaper one is a bigger company. It's the oldest headline index, which is why it still leads the evening news.
Why markets watch it
It's the most quoted index, even though it covers only 30 companies.
Connects to
Last seen in
We explain why it moves markets. What you do with it is your call. Commentary and education only. Not financial advice. All terms