DOW 30 Stocks

Dow membership is determined by an index committee rather than by a simple rule such as selecting the 30 largest U.S. companies. The committee considers factors including a company's reputation, sustained growth and investor interest while seeking appropriate industry representation.

Transportation and utility companies are generally excluded because separate Dow Jones indexes cover those industries.

No. A company's market capitalization alone does not determine whether it belongs in the Dow. Some companies outside the Dow are larger by market value than some Dow components.

The index is intended to include prominent companies that collectively represent important parts of the U.S. economy, rather than simply ranking companies from largest to smallest.

The Dow is a price-weighted index. The share prices of its 30 components are added together and divided by the Dow Divisor, which is adjusted when necessary to maintain continuity after events such as stock splits and changes to the index's components.

Because the index is price-weighted, stocks with higher share prices have more influence over changes in the Dow than stocks with lower share prices.

The Dow uses share price rather than company size to determine each component's influence. As a result, a company with a higher stock price can have a greater effect on the Dow than a company with a much larger total market capitalization but a lower share price.

This is an important difference between the Dow and market-cap-weighted indexes.

Investors can compare Dow 30 stocks using metrics such as share price, P/E ratio, market capitalization and trading volume. Each provides a different perspective: the P/E ratio can help assess valuation relative to earnings, market capitalization indicates company size, and trading volume can provide context about a stock's trading activity and liquidity.

No single metric provides a complete picture of a company. Investors may also consider factors such as revenue and earnings growth, profitability, dividends, debt and the company's financial outlook when evaluating a Dow stock.

There is no fixed schedule for replacing Dow components. Changes are made as needed to keep the index relevant to the U.S. economy and its major industries.

As companies are added and removed, a current component list is more useful than memorizing a historical group of Dow stocks.

Dow components are generally considered blue-chip companies because they tend to be large, established and widely followed businesses. However, “blue chip” is a broad market description rather than a formal requirement that automatically qualifies a company for the Dow.

Likewise, many companies commonly described as blue-chip stocks are not members of the Dow.

The Dow is a widely followed market benchmark, but it represents only 30 companies. That makes it a much narrower sample of U.S. stocks than broader indexes.

Its price-weighted methodology also means its performance is influenced by share prices rather than each company's total market value. Investors looking for a broader picture of the market may therefore compare the Dow with other major indexes.

You cannot buy an index itself. Investors who want exposure to the Dow can use an investment product designed to track the index, such as an exchange-traded fund, or buy individual Dow component stocks.

Buying individual components is different from tracking the index because an investor chooses the stocks and their portfolio weights rather than following the Dow's methodology.