Betfair emerged from an idea developed by the former professional gambler Andrew Black. He took his plan to launch a betting exchange to Mr Wray, a JP Morgan trader, in 1998. The site officially launched in June 2000, with its first market on The Oaks race. The pair own 24 per cent of the company.
The group's betting exchange revolutionised gambling as it removed the bookie, and matched punters directly with each other. It has grown to become the largest international online sports betting provider, with more than 3 million registered customers. Mr Yu said: "For 10 years, Betfair has delivered sustained revenue growth and continued profitability, and this success, along with our debt free balance sheet, underpins our confidence to continue investing in the many opportunities we see before us for the long-term success of the business."
The listing is not designed to raise money, and no new shares will be issued. The company has 14 major investors holding 75 per cent of the shares, who have pledged to sell 10 per cent of the group into the public markets. The issue is yet to be priced, but analysts expect it to value Betfair at about £1.5bn, putting it in the FTSE 250 index.