Bitcoin stocks might be one to watch. Not sure who apart from DCC.
Bitcoin sat for awhile around $3,400; then it moved upwards to $3,600 and had a spell there. The next move to $4,200 was way too fast and was smacked down on heavy volume. Looks like it's finished it's spell around $3,800, now moving over $3,900, and maybe reaching $4,000 on this move?
Apparently falling to these levels saw the Bitcoin become economically unmineable, and supposedly with diminished supply the laws of supply and demand are now pulling the price up?