Cameron and Tyler Winklevoss disclosed in a regulatory filing that they had chosen to list their bitcoin exchange-traded fund on the Nasdaq stock exchange.

Despite cautions and hesitations among regulators about investing in virtual currency, the Winklevoss twins are inching closer to creating the first p(...)

Brothers Cameron (left) and Tyler Winklevoss talk to each other as they attend a New York State Department of Financial Services (DFS) virtual currency hearing in New York in January. In a blog post, the Winklevoss brothers said they used bitcoins to buy tickets for a high-altitude voyage on billionaire Richard Branson’s Virgin Galactic commercial spaceflight venture. Photograph: Lucas Jackson/Reuters

You can’t spend bitcoins at Amazon. com or to pay your mortgage but, as the Winklevoss twins showed, you can use the digital currency to book a(...)

Yesterday, Slovenia-based Bitstamp became the second major bitcoin exchange to halt customer withdrawals in the past several days, citing “inconsistent results”, and blaming a denial-of-service attack. Photograph: Tomohiro Ohsumi/Bloomberg

Bitcoin is being hit by attacks from unknown computer hackers who are sending “mutated” lines of code into the program that runs the virtual c(...)

Nobel Prize winner Eugene Fama
Stocktake

Renowned value investor Jeremy Grantham has harsh words for Alan Greenspan, Ben Bernanke and incoming Federal Reserve chief Janet Yellen in his latest(...)

Twins, (L-R) Tyler Winklevoss and Cameron Winklevoss, pictured  rowing for Oxford in 2010, are looking for investors for Bitcoin, a virtual currency that can be used to buy and sell a broad range of items, from electronics to illegal narcotics. Photograph:Jan Kruger/Getty Images

Tyler and Cameron Winklevoss, made famous for their tussles with Facebook chief executive officer Mark Zuckerberg in the social network’s early years,(...)

Cameron and Tyler Winklevoss, who have amassed a large bitcoin portfolio, in their office in New York last week. The twin brothers’ decision to go public with their position on the digital currency signals a new stage for what has been an experimental alternative to national currencies. Photograph: Agaton Strom/The New York Times

Bitcoin’s wild ride may not have been the biggest business story of the past few weeks, but it was surely the most entertaining. Over the cours(...)