As we can see the bulls reactions is weak as most of their capital is stuck at 4000$ levels without the possibility to top-up as they might risk a lot of their capital doing so. They are shy and fearful. After their small reaction is finished in next 4 to 8 hours we will see a continuation from bears.
By the looks of it seems like a couple of bull-whales caused this drop. Any cross between LONGS & SHORTS is DUE.