What are examples and advantages of a price-weighted stock index and a market value-weighted stock index?
Price weighted index
Price weighted index is calculated by adding the stock price of stocks in the index and dividing it by the number of stocks in the index.
Advantage: The computation is simple.
Example: Dow Jones Industrial Average (DJIA) and Nikkei Dow Jones Stock Average.
Market value-weighted stock index
Market value-weighted stock index has weights based on the market capitalization of each index stock as a proportion to the total market capitalization of all the stocks in the index.
Advantage: Since the weights are based on the market capitalization, the index stock does not need to be adjusted when a stock splits or pays a stock dividend.
Example: FTSE 100 and S&P 500.
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