What’s really behind the crypto crash

‘Market turmoil’ looks set as the theme of the week, so let’s take a close look at a trading arena more prone to mayhem than most. Why has bitcoin lost half its value since November?

First, I could make a case that since crypto investment has become at least a small part of many mainstream portfolios, its prices tend to respond to the same signals that influence conventional share indices — rather than following fantasy flight paths of their own.