The number of coins circulating in the market and available to the public for trading, similar to publicly traded shares on the stock market. 86% volatile. The only thing it means is that you must prepare and examine all available information before making a decision. And if you're not sure https://bookmark-group.com/story2477665/%D0%9B%D1%83%D1%87%D1%88%D0%B0%D1%8F-%D1%81%D1%82%D0%BE%D1%80%D0%BE%D0%BD%D0%B0-exchange-btc-to-usdt