The following is a list of publicly traded companies having the greatest market capitalization. In media they are described as being the most valuable companies, a reference to their market value.
Market capitalization is calculated from the share price (as recorded on selected day) multiplied by the number of outstanding shares. Figures are converted into USD millions (using rate from selected day) to allow for comparison. Only companies with free float of at least 15% are included, value of unlisted stock classes is excluded. Investment companies are not included in the list.