什么是道琼斯运输业平均指数

道琼斯运输业平均指数指的是以美国泛美航空公司、环球航空公司、国际联运公司等20家具有代表性的运输业公司股票为编制对象的运输业股价平均数。于1884年始创，是20种在美国买卖的交通业股票的股价加权平均。是道琼斯公司(Dow Jones & Co.)根据美国20家最大的航空，公路，铁路和货运公司的股票价格计算的加权平均指数。它包括着20种有代表性的运输业公司的股票，即8家铁路运输公司、8家航空公司和4家公路货运公司。

The Dow Jones Transportation Average (also called the "Dow Jones Transports;" DJTA) is the oldest U.S. stock market index.

Overview：

The Dow Jones Transportation Average (DJTA) is the most widely recognized gauge of the transportation sector. It is also the oldest index used today, even older than its more famous brother, the Dow Jones Industrials (DJIA). The Transportation Average was the first stock index developed by Charles Dow in 1884. At inception, the index held only nine stocks (all railroads). In 1896 it was modified to include 20 “active” stocks, including 18 railroads. (As you can probably guess, automotive and airline stocks were not added to the index until much later.) The index is often referred to simply as the Dow Jones Transports.

道琼斯运输业平均指数成份股

Composition：

The Dow Jones Transportation Average is composed of 20 stocks that are chosen to represent the transportation industry. Like other Dow Jones Averages, it is a price-weighted index. This means that a firm's weighting in the index is determined by its share price, not by its market capitalization.

Alexander & Baldwin, Inc. (ALEX) (shipping)

AMR Corporation (AMR) (major airlines)

Burlington Northern Santa Fe Corp. (BNI) (railroads)

C.H. Robinson Worldwide, Inc. (CHRW) (air delivery & freight services)

Con-Way, Inc.(CNW) (trucking)

Continental Airlines, Inc. (CAL) (major airlines)

CSX Corp. (CSX) (railroads)

Expeditors International (EXPD) (air delivery & freight services)

FedEx Corporation (FDX) (air delivery & freight services)

GATX Corp. (GMT) (rental & leasing services)

JB Hunt Transport Services, Inc. (trucking)

JetBlue Airways Corp. (JBLU) (regional airlines)

Landstar System, Inc. (LSTR) (trucking)

Norfolk Southern Corp. (NSC) (railroads)

Overseas Shipholding Group, Inc. (OSG) (shipping)

Ryder System, Inc. (R) (rental & leasing services)

Southwest Airlines, Inc. (LUV) (regional airlines)

Union Pacific Corp. (UNP) (railroads)

United Parcel Service, Inc. (UPS) (air delivery & freight services)

YRC Worldwide Inc. (YRCW) (trucking)

(last change September 16, 2005)

道琼斯运输业平均指数的历史

History：

It was created on July 3, 1884 by Charles Dow, co-founder of Dow Jones & Company, as part of the "Customer's Afternoon Letter". At its inception, it consisted of eleven transportation-related companies: nine railroads and two non-rail companies. They were the following:

Chicago, Milwaukee and St. Paul Railway

Chicago and North Western Railway

Delaware, Lackawanna and Western Railroad

Lake Shore and Michigan Southern Railway

Louisville and Nashville Railroad

Missouri Pacific Railway

New York Central Railroad

Northern Pacific Railroad preferred stock

Pacific Mail Steamship Company (not a railroad)

Union Pacific Railway

Western Union (not a railroad)