“Bitcoin has been rallying hard significantly in recent weeks. Over one month, the price has increased by 43 percent, according to Coindesk figures. Over one year, the market capitalization for bitcoin has increased massively, from around $7.16 billion in May 2016 to $27.9 billion today. In just the last 24 hours its market capitalization has risen by over $1 billion, according to the website’s price index.”
http://www.cnbc.com/2017/05/09/bitcoin-price-record-high.html
