What are major US indices?


Dow Jones Industrial Average

Dow Jones Industrial Average is an index that shows how 30 large publicly owned companies based in the United States have traded during a standard trading session in the stock market. The Industrial portion of the name is largely historical, as many of the modern 30 components have little or nothing to do with traditional heavy industry.


Dow Jones Transportation Average

Dow Jones Transportation Average is a U.S. stock market index from S&P Dow Jones Indices of the transportation sector, and is the most widely recognized gauge of the American transportation sector. It is the oldest stock index still in use.


Dow Jones Utility Average

Dow Jones Utility Average is a stock index from Dow Jones Indexes that keeps track of the performance of 15 prominent utility companies based in the United States.


S&P 500

Standard & Poor’s 500 is an American stock market index based on the market capitalizations of 500 large companies having common stock listed on the NYSE or NASDAQ. The S&P 500 differs from other U.S. stock market indices, such as the Dow Jones Industrial Average or the Nasdaq Composite index, because of its diverse constituency and weighting methodology. It is one of the most commonly followed equity indices, and many consider it one of the best representations of the U.S. stock market, and a bellwether for the U.S. economy.


S&P 400 Mid Cap

S&P 400 Mid Cap serves as a barometer for the U.S. mid-cap equities sector and is the most widely followed mid-cap index in existence. To be included in the index, a stock must have a total market capitalization that ranges from $1.4 billion to $5.9 billion at the time of addition to the index.


S&P 600 Small Cap

The S&P SmallCap 600 Index is a stock market index from Standard & Poor’s. It covers roughly the small-cap range of US stocks, using a capitalization-weighted index. The market capital of companies included in the S&P SmallCap 600 Index ranged from US$ 400 million to US$ 1.8 billion. These smallcap stocks cover a narrower range of capitalization than the companies covered by the Russell 2000 Smallcap index which range from $169 million to $4 billion.


Nasdaq Composite

Nasdaq Composite is a stock market index of securities listed on the NASDAQ stock market. Along with the Dow Jones Average and S&P 500 it is one of the three most-followed indices in US stock markets. The composition of the NASDAQ Composite is heavily weighted towards information technology companies.


Russell 2000

Russell 2000 is a small-cap stock market index of the bottom 2,000 stocks in the Russell 3000 Index. It is the most common benchmark for mutual funds that identify themselves as “small-cap”, while the S&P 500 index is used primarily for large capitalization stocks. It is the most widely quoted measure of the overall performance of the small-cap to mid-cap company shares. The average market capitalization for a company in the index is around $1.26 billion. The median market cap is around $528 million. The market cap of the largest company in the index is around $5.0 billion.


Vanguard Total Stock Market ETF

Vanguard Total Stock Market ETF seeks to track the performance of the CRSP US Total Market Index, which represents approximately 100% of the investable U.S. stock market and includes large-, mid-, small-, and micro-cap stocks regularly traded on the New York Stock Exchange and Nasdaq.

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