I thought the whole purpose of cryptocurrency was to disrupt centralized monetary. You would expect this is kind of war between governments (which are actually banks & few rich individuals) and cyrptocurrency believers.
I think you all heard that big money owners are betting on bitcoin collapse. This the way they can collect more btc for less. Many exchange is now giving future options is also another reason for price fluctuation. FUD and bad news are still effective method for price reduction; so betting on price drop is safer than price increase.