Dow Jones index

 
Pronunciation: /daʊˈdʒəʊnz/
(also Dow Jones average)
  • an index of figures indicating the relative price of shares on the New York Stock Exchange, based on the average price of selected stocks.

Origin:

from the name of Dow Jones & Co, Inc., a financial news agency founded by Charles H. Dow (1851–1902) and Edward D. Jones (circa1855–1920), American economists whose company compiled the first average of US stock prices in 1884