In my observation base on the coin market cap and some other source of analysis came from different people speculation price reach value for this 2018 reach more than 20k usd before end of the year same as last year 2017 price reach almost 20k usd but in my own analysis 20k usd price not reachable in this year, look at the price fluctuation and the price are in six month old bitcoin stay in the lower price of course they have possible bitcoin to increase in the market but not too much like the expectation AT 20k usd.