Bitcoin's wild price moves stem from its design — and you'll need strong nerves to trade it. The most popular cryptocurrency, bitcoin is trading at $A44,500, and comes after the top ten cryptos, including ethereum and dogecoin, added $US300 billion ($A409 billion) to the market over the past week. Meanwhile, ethereum experienced a strong rally last week with gains as much as 30 per cent as it underwent a major software upgrade on Thursday. He said while some investors do get nervous about the volatility of bitcoin, it is to be expected for a relatively new asset class. Bitcoin, most notably, has had the highest average return across all asset classes in the last decade,” he said.