Market capitalization of all bitcoin has been over $300 billion in December 2017. (In comparison to the market capitalisation of Google, which is $750 billion and of Apple, which is $930 billion.)
Market capitalization is the nominal value of a company or an asset, which is determined by traders and the market price.
The market capitalization of bitcoin nearly reached $20 billion in January 2017, but at the end of 2017 it was over $300 billion. This was welcomed not only by investors, but also by financial
analysts, because the higher the capitalization is, the more stable the price is. For long ago the question is not the future of bitcoin, the question is how high the price can be. According to Ronnie Moas, founder of Standpoint Research the price will reach $50.000 by 2027.