Change on that front is imminent. The Chicago Board Options Exchange is planning to start offering cash-settled bitcoin futures by next April, CNBC reported last week. Trading platform LedgerX LLC last month won regulatory approval from the U.S. Commodity Futures Trading Commission to act as a clearing house for derivatives settled in digital currencies. The ability to short or take leveraged positions in digital currencies could open them to a far wider array of investors.
It's a fair question, but one that could equally be leveled at gold. Since Richard Nixon ended the fixed $35 an ounce convertibility of gold in 1971, its value has risen at times (the 1970s, the 2000s) and fallen at others. The best argument to justify investing in gold these days is not that it's an eternal "store of value" but that its very weirdness makes it special: According to modern portfolio theory, you should buy the shiny stuff not for its superior investment returns , but because it doesn't correlate much to other asset classes such as stocks, bonds and commodities.
However, while gold did exhibit weak or negative correlations to returns on the S&P 500 for much of the 1980s and early 1990s, it's been positively correlated for extended periods since then. During gold's 2012 run-up, the two moved more or less in tandem. If gold deserves investment dollars because its inconsistent correlation with equities helps diversify portfolios, the same argument can be made for bitcoin, too.
Digital currencies may be as vulgar as the original barbarous relic, but neither is going away any time soon. If that makes investors in both look less like seers and more like problem gamblers betting on where a fly will land -- well, welcome to financial markets.
David Fickling is a Bloomberg Gadfly columnist covering commodities, as well as industrial and consumer companies. He has been a reporter for Bloomberg News, Dow Jones, the Wall Street Journal, the Financial Times and the Guardian.
This column was provided by Bloomberg News.
What, though, is the value of a digital currency?