Dow Jones Transportation Averager
Dow Jones Transportation Average
A stock market index founded in 1884 by Charles Dow tracking (usually) 20 companies in the transportation industry. It is a price-weighted index, meaning that stocks with higher prices per share affect the average more. It also scales its averages to account for stock splits and other changes in the companies tracked. It includes stocks in shipping, airlines, trucking, railroads, and similar industries. It is the oldest actively used stock index in the world.
Dow Jones Transportation Average®
A trademark for a stock average that uses the share prices of 20 large companies in an effort to show overall price movements in the stock of transportation-related firms. This average, which used to be limited to the stock of railroads, now includes those of airlines and trucking companies.