After the fourth quarter of 2013, Apple's market capitalization was $500 billion. The market capitalization has steadily increased with the release of Apple's flagship product of the iPhone.

The global stock market capitalization in 2009 was approximately $45 Trillion.

current market capitalization may refer to the the value that you see today is the sum of the free float market capital of the thirty companies relative to the base market capital.

base market capitalization refers to The value of a set of securities at a particular time. The base market value of a set of securities is used to determine the value of an index.

Market capitalization begins at the start of any company. It is calculated by multiplying outstanding shares by the current market price of one share.

Under the 'full-market capitalization' methodology, the total market capitalization of a company, irrespective of who is holding the shares, is taken into consideration for computation of an index. However, if instead of taking the total market capitalization, only the Free-float market capitalization of a company is considered for index calculation, it is called the Free-float methodology. Free-float market capitalization is defined as that proportion of total shares issued by the company which are readily available for trading in the market. It generally excludes promoters' holding, government holding, strategic holding and other locked-in shares, which will not come to the market for trading in the normal course. Thus, the market capitalization of each company in a Free-float index is reduced to the extent of its Free-float available in the market.