Ethereum is gaining momentum with exposure to more and more of the general population. If Ethereum technology prevails then exposure and growth from implication alone will drive the value upward due to supply and demand. With growth also comes excitement in the market. A stimulation of the market can cause massive value fluctuations in the positive direction which will have to be corrected in the near future. If ETH sails smoothly past the $500 mark then there is a chance for stabilization around 570-600. A more violent price increase can bring ETH up to 700-900 with a 15%-30% sell off following the new high.