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Bob Holland, Fortis Investments, Boston; Marca Joelson, guest; James Duncan, Canaccord Capital, Toronto.

Nicola Paine, John Quail, Sean Farrell, Nick Wardle, Victoria Weatherley, all London Stock Exchange, London.

Mark Satter, Charlotte Brown, Lisa Packham, all Bloomberg Tradebook; Ade Adetola, Bloomberg; Jody Geyer, Bloomberg Tradebook; Will Harrison-Wallace, G-Trade, all London.

Tim Noakes, Stamford Group, Dallas; Phil Shivers, Scott Lesser, both Jefferies International, London.

Peter Allen, Franklin Portfolio Associates, Boston; Patrick Johnson, Archipelago; Willy Stemp, M2MB, both London.