Say what now?! from 16.6K to 19K? That is one huge leap. I have not seen that though, i think it is just for a split second, could be a glitch on coinbase or something, but if that is the case if that huge leap actually happens it will surely be followed up with a huge dip. It is just to correct the price. A lot of people are selling now at 16K hence price dropped back somewhere between 14K to 15K.