These are the top 30 symbols with highest number of trades for the last 24h. In case there are less than 30 assets traded in the last 24h, the system tracks back to the last 72h.
Most popular assets are organized by number of trades and updated every 5 minutes. Keep in mind that most popular assets will differ for every user (users from Italy can have different popular assets than users from the UK for example). This feature is set by default.