Dow Jones Transportation Average
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| Dow Jones Transportation Average | |
|---|---|
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| Name | Dow Jones Transportation Average |
| Type | Price-weighted stock index |
| Founded | 1884 |
| Operator | S&P Dow Jones Indices |
| Exchanges | New York Stock Exchange; NASDAQ |
| Components | 20 companies |
| Related | Dow Jones Industrial Average; S&P 500 |
Dow Jones Transportation Average The Dow Jones Transportation Average is a price-weighted stock index tracking 20 prominent companies in the United States transportation sector. Established in 1884, it is one of the oldest indices in Wall Street history and is maintained by S&P Dow Jones Indices. The index is closely watched alongside the Dow Jones Industrial Average and the S&P 500 as a barometer of freight activity, passenger movement, and industrial supply chains.
History
The index was created by Charles Dow and Edward Jones in 1884 during a period of rapid expansion in rail transport and was originally composed of railroad stocks such as Union Pacific Railroad and Pennsylvania Railroad. Over time its composition shifted with changes in transportation technology and corporate evolution, incorporating companies like American Airlines Group and United Parcel Service as aviation and parcel delivery grew. Ownership and calculation oversight moved through entities including Dow Jones & Company and now S&P Dow Jones Indices, reflecting consolidation in financial services publishing. Notable historical events affecting the index include the rise of dieselisation in railroads, the deregulation era marked by Airline Deregulation Act, and shocks from the 1973 oil crisis and the 2008 financial crisis which altered freight volumes and passenger demand.
Composition and Calculation
The index comprises 20 companies selected to represent major transportation modes such as freight and passenger rail, airlines, trucking, and shipping. It is price-weighted, using a divisor comparable to the methodology used for the Dow Jones Industrial Average to adjust for stock splits, spin-offs, and corporate actions. S&P Dow Jones Indices periodically reviews components, with changes announced for reasons such as mergers, bankruptcies, or to better represent shifts exemplified by companies like FedEx or Norfolk Southern. The calculation incorporates share prices quoted on the New York Stock Exchange and NASDAQ and uses a market-close snapshot to compute intraday and end-of-day values.
Components and Sector Representation
Components span airlines such as Delta Air Lines and American Airlines Group, package delivery firms like United Parcel Service and FedEx Corporation, railroad operators including CSX and BNSF Railway (via parent corporations), and logistics and maritime firms exemplified by Matson (company) and other carriers. The sector representation aims to mirror activity across freight rail, airline passenger travel, maritime shipping, and express carriers. Selection favors large-cap, widely traded names such as Southwest Airlines, Norfolk Southern Corporation, and corporate groups that influence supply chains, like Union Pacific Corporation and Kansas City Southern (subject to merger outcomes). This composition provides exposure to both domestic intermodal transport and international carriage through companies engaged in global logistics.
Market Significance and Uses
Market participants use the index as an indicator of commercial activity, tying movements to freight demand, consumer spending shifts, and industrial production. Analysts at firms such as Goldman Sachs, Morgan Stanley, and J.P. Morgan reference the index when forecasting macro variables like industrial production and shipping cycles. Portfolio managers use it for sector rotation strategies and to hedge exposures linked to commodity flows monitored by entities such as the Bureau of Transportation Statistics and central banks during inflation assessments. The index also serves as a benchmark for exchange-traded funds and structured products issued by providers like State Street Corporation and BlackRock.
Performance and Historical Trends
Historically, the index has reflected broader business cycles: expansions with rising freight tonnage and passenger miles often boosted returns, while recessions, fuel shocks, and pandemics suppressed valuations. Significant rallies occurred during post-war booms and technology-driven logistics improvements, while sharp declines were recorded during the Great Depression, the 2008 financial crisis, and the COVID-19 pandemic downturn when air travel and cargo volumes collapsed. Long-run trends show increased influence of global trade patterns tied to events like the China–United States trade war and the growth of e-commerce driven by platforms such as Amazon (company), which altered parcel delivery volumes and pushed valuations for carriers.
Criticism and Limitations
Critics note the index’s price-weighted structure can overweight higher-priced shares regardless of market capitalization, producing distortions compared with capitalization-weighted indices like the S&P 500. The small component count (20) limits diversification relative to broader benchmarks such as Russell 2000 or Wilshire 5000, and concentrated exposure to cyclical names can amplify volatility during shocks like the 1973 oil crisis or pandemic-related travel bans. Additionally, changes in corporate structures from mergers—examples include Canadian Pacific Railway and Kansas City Southern transactions—can complicate continuity. Analysts argue that alternative measures incorporating freight volumes from agencies like the Bureau of Transportation Statistics or spot freight rates may better capture real-world transportation demand than equity prices alone.
Category:Stock market indices