What is Jack Ma's Ant Group and how does it make money?

Digital financial services giant Ant Group is on the cusp of pulling off the world's biggest initial public offering and could be worth over US$500 billion in the near future, riding on the digitisation of financial services in the world's second-largest economy.Hangzhou-headquartered Ant's coming out parade illustrates China's lead in digital finance. Its super-slick mobile payment app, Alipay, has over 1 billion users, making it the world's most popular app outside social-media...