Buoyant bitcoin stirs crypto-bubble fears

Digital gold: The price of a single bitcoin hit an all-time high of above US3,500 this week, dragging up the value of hundreds of newer, smaller digital rivals in its wake.

LONDON: Bitcoin and other “cryptocurrencies” are big money, virtually as big as Goldman Sachs and Royal Bank of Scotland combined.

The price of a single bitcoin hit an all-time high of above US$3,500 this week, dragging up the value of hundreds of newer, smaller digital rivals in its wake. Now some investors fear a giant crypto bubble may be about to burst.