Digital currencies rally, but caution prevails

Digital service: Coinbase offers services for buying, selling, sending, receiving, and storing bitcoin. — Reuters

THIS week, the rally in crypto currencies is at its all-time high.

Bitcoin, the pioneer in digital currency, surged to over US$1,700 per coin in anticipation of a reversal in United States financial regulators’ ruling to allow for an exchange-traded fund for Bitcoin and other factors.