Tom Kloet, American head of the Toronto stock exchange operator TMX Group, has twice changed the shape of trading platforms, but he missed the hat-trick.

He ran the Singapore Exchange between 2000 and 2002, overseeing the company's transformation from a mutual utility to commercial entity and took the helm at the Toronto Stock Exchange in 2008 just as the company was beginning to digest its takeover of the Montreal Stock Exchange. It was a key deal that put the M in TMX Group and elevated the Toronto market into the big league. TMX now has a stock market value of US$3.1bn and is one of the world's top 20 exchanges.