It's a stock index, tracking the weighted average performance of 30 major stocks. See related link.
you can find this at many finiciual website, but I don't know what saturday your talking about
Charles H. Dow (1851-1902) introduced the Dow Jones Industrial Average (DJIA) in 1896 when the market was not considered a respectable venture because of unscrupulous dealers, massive speculation,...
Charles H. Dow (1851-1902) introduced the Dow Jones Industrial Average (DJIA) in 1896
The stock values of all 30 companies are added up and divided by 0.12283402, the new divisor.