Bloomberg Markets struck a cautious tone, with US stocks fluctuating and Treasuries gaining a fifth day, as investors watched developments in Washington for clues on the prospects for the Trump administration’s pro-growth policies. The S&P 500 Index was little changed, as futures erased gains after House Republicans postponed a planned meeting on the health-care bill. The measure’s outcome is …

  DUBAI / Reuters Amazon.com Inc has agreed in principle to buy Dubai-based internet retailer Souq.com, one of the best-known names in the Middle East’s online shopping market, sources familiar with the deal said. Souq.com, which sells consumer electronics, fashion, household items and other goods, lays claim on its website to being the largest e-commerce site in the Arab world. …

  Bloomberg China Southern Airlines Co., Asia’s biggest carrier by passengers, is in advanced talks to sell a stake to American Airlines Group Inc., according to people familiar with the matter. The negotiations focus on an investment of about $200 million by Fort Worth, Texas-based American in China Southern’s Hong Kong-listed shares, said the people, asking not to be identified …