Bloomberg UnitedHealth Group Inc., the biggest U.S. health insurer, posted first-quarter profit that beat analysts’ estimates as results from its Optum technology and consulting business helped overcome losses on Affordable Care Act plans. Although selling Obamacare plans represents a small portion of UnitedHealth’s revenue, the business has been under scrutiny because of its widening losses. The insurer plans to …

  Bloomberg Argentina plans to sell as much as $15 billion of bonds in its return to global bond markets after more than a decade of isolation, setting the stage for the biggest emerging-market sovereign sale since at least 1999. The nation reduced the yields it was initially offering investors after surveying potential buyers about their interest in the sale. …

  Bloomberg Peru kept borrowing costs unchanged for a second month as slowing inflation and a rally in the sol give policy makers more time to gauge the impact of earlier rate increases. The central bank board, led by bank President Julio Velarde, maintained the key rate at 4.25 percent, matching the forecasts of 11 of 14 economists surveyed by …