In this short survey, we will present a few more popular stock indices, split up according to the companies that maintain them.
Standard & Poor’s 
Leading Index: S&P 500.
Additional Indices
- S&P MidCap 400
Made up of 400 companies with middle size market cap (5-20 billion dollars) that are not included in the S&P 500.
- S&P SmallCap 600
Contains 600 stocks from small market cap (up to 5 billion dollars) firms that are not included in the S&P 500.
- S&P Super Composite 1,500
This index includes all of the corporations in the other S&P indices – a total of 1500 stocks – and is meant to represent the entire American stock market.
Dow Jones & Co. 
Leading Index: Dow Jones Industrial Average.
Additional Indices
- Dow Jones Transportation Average
Made up of the stocks of 20 leading transportation and shipping companies.
- Dow Jones Utility Average
Includes the stocks of 15 companies that provide electricity, gas and water.
- Dow Jones Composite Average
This is a composite of the Dow Jones industrial, transportation and utility averages. It contains 65 stocks in total.
Frank Russell Co. 
Leading Index: Russell 2,000
This includes stocks from 2,000 small cap companies. This is the most popular index for tracking the smaller companies in the market.
Additional Indices
- Russell 1,000
Contains 1,000 large market cap companies.
- Russell 3,000
Includes the stocks on both the Russell 2,000 and the Russell 1,000.
American institutional investors often use Russell indices. As well, they are used to judge the performance of mutual funds.
Wilshire Associates 
Leading Index: Wilshire 5,000
This index contains stocks from 6,500 companies across all sectors of the American market. This index is thought to be the broadest indicator available.
Additional Indices
- Wilshire 4,500
Includes all of the stocks in the Wilshire 5000, except for those that are part of the S&P 500. This index is used to represent the mid and small cap sectors of the market.
NYSE Composite Index 
The NYSE Composite Index is made up of all of the stocks listed on the NYSE and measures the average change in their prices.
