Bloomberg Citigroup Inc. reduced its forecast for net interest margin, the difference between what it makes on loans and pays for funds, on expectations interest rates will remain low for a longer stretch than bank executives previously thought. The margin will be about 2.90 percent in the second half of 2016, down from a previous forecast of 2.95 percent, …

  Bloomberg The highly-indebted oil company at the center of Brazil’s biggest corruption scandal still has cash to support top athletes in the run-up to the Olympic games being held in its home city. Rio de Janeiro-based Petrobras has expanded its budget for athletes, even as it cut overall sponsorship spending by 27 percent this year to 228 million reais …

  Bloomberg Accused by one of its founders of nepotism and greed, Hyperloop Technologies Inc., a startup dedicated to fulfilling Elon Musk’s dream of high-speed transportation, is taking steps to rein in the power of its major stakeholders. At a series of all-hands meetings in recent weeks, according to two people familiar with the situation, the company told employees it’s …