Bitcoin is a virtual or online currency created through a "mining" process where a computer's resources are used to perform millions of calculations. Once mined, bitcoins can be stored in an online wallet, traded in an online exchange, or used to buy goods and services.
Jump Trading LLC, was all but invisible until it was among six companies subpoenaed in April by New York prosecutors. Jump has ascended the ranks of high-frequency traders during the past 15 years to become one of the top firms on the Chicago Mercantile Exchange.
Ben S. Bernanke, the world’s most-powerful central banker, says he doesn’t understand gold prices. If his peers had paid attention, they might have stopped expanding reserves that lost $545 billion in value since bullion peaked in 2011.