Bitcoin is nearing to a very important resistance level if we manage to breakthrough this key resistance line then and then we will see a bullish momentum take effect and rally all the way to the top but the volume stop at $3900 i think the bulls are exhausted so we might see another drop any day now or week.
And the drop you are expecting has happened.
After reaching nearly $4,200, the wall has been broken which we can verify that it's possible for bitcoin to break the resistance. The market has been slowed down due to some reasons that we can't say for now.
I think the biggest players are just waiting for one major announcement before they show themselves to the market.