Washington / AFP US regulators have given trading group IEX a green light to launch a new stock exchange, which will operate at a slightly slower speed of trading, the Securities and Exchange Commission said. Investors Exchange (IEX) will introduce a small delay or “speedbump” of 350 milliseconds on orders to buy and sell stock, in an attempt to level …

  New York / AFP Shares of Oi SA tumbled on speculation that Brazil’s most indebted telecommunications operator is closer to filing for bankruptcy protection after documents showed little sign of progress in talks with bondholders. The documents give a glimpse into just how complicated the restructuring is. Rio de Janeiro-based Oi, which has about 50 billion reais in debt ($14.5 …

  New York / Bloomberg The biggest US airlines missed their chance to lock in the cheapest energy costs in more than 12 years after jet fuel surged as much as 80 percent since January. The fuel on the US Gulf Coast was trading at $1.37 a gallon on Friday, up from less than 80 cents on January 20, the …