http://www.newsweek.com/bitcoin-price-rise-surge-value-cryptocurrency-crypto-virtual-currency-1382839

The cryptocurrency bitcoin appears to have experienced a sudden and unexplained rise in value—sending the price of the currency soaring to nearly $5,000.

According to CoinMarketCap, a website that tracks cryptocurrency prices in real-time, a slew of virtual coins are enjoying the surge, including Ethereum, XRP and Litecoin. Bloomberg noted that bitcoin’s value—a notoriously volatile number—is the highest since last November. “The reason why? Anybody’s guess at the moment,” one crypto firm CEO told the outlet.