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Market capitalization is a term used to describe the size of a company based on the total value of the company’s stock. Market capitalization is an important data point for making informed ...
A capitalization-weighted (or cap-weighted) index, also called a market-value-weighted index is a stock market index whose components are weighted according to the total market value of their outstanding shares. Every day an individual stock's price changes and thereby changes a stock index's value.
Stock market indices may be categorized by their index weight methodology, or the rules on how stocks are allocated in the index, independent of its stock coverage. For example, the S&P 500 and the S&P 500 Equal Weight each cover the same group of stocks, but the S&P 500 is weighted by market capitalization, while the S&P 500 Equal Weight places equal weight on each constituent.
Market cap is given by the formula =, where MC is the market capitalization, N is the number of common shares outstanding, and P is the market price per common share. [ 8 ] For example, if a company has 4 million common shares outstanding and the closing price per share is $20, its market capitalization is then $80 million.
Investors playing the odds tend to invest in passively managed index funds, growing their wealth patiently alongside the expanding U.S. and global economies. A passively managed fund is when ...
It is one of the most commonly followed equity indices and includes approximately 80% of the total market capitalization of U.S. public companies, with an aggregate market cap of more than $43 trillion as of January 2024. [2] [6] The S&P 500 index is a free-float weighted/capitalization-weighted index.
Both the cap-weighted market portfolio and the CAPM model are inefficient. If we assume that the capitalization-weighted market portfolio is not efficient, assuming a pricing inefficiency, capitalization-weighting might be sub-optimal and the degree of sub-performance might be proportional to the degree of random noise. [3] [10] [11]
The index represents approximately 7% of the total market capitalization of the Russell 3000 Index. [1] As of 30 November 2024, the weighted average market capitalization of a company in the index is approximately $3.97 billion and the median market capitalization is approximately $1.07 billion. The market capitalization of the largest company ...