A special coinmarketcap script contains many currencies such as Bitcoin .. Any currency can be added to the list and add a token coin addition can now get the system
The statistics are updated every 5 minutes. Market capitalization is calculated by multiplying price by total supply. Prices are calculated by averaging the prices at the major exchanges weighted by volume.
Coins with stale datapoints (more than 6 hours old) are shown at the bottom of the list with question marks, and are de-listed after 7 days.