Those people that have a business that is running on Bitcoin transactions from daily to monthly, volatility is really beneficial to them.  Volatility is also very important for traders that are shorting and longing Bitcoin to achieve fast profit but they trade on leverage which expose them to too much risk but there are also other types of traders that are just averaging with reduced risk needs volatility. The reason why Bitcoin is a speculative asset is because it's volatile and the volatile nature of Bitcoin is really an advantage to many people and also a disadvantage to some people.