London-listed Shire pharmaceuticals are getting a boost. Talk of a takeover by U.S firm AbbVie is sending its share price to record levels. Investors are wanting in on the action that could see Shire being snapped up in a 31 billion pound deal. Shire requested the U.S firm up their offer from 51 pounds and 15 pence per share—AbbVie's new bid is over 53 pounds per share, which could very well clinch the deal, which Shire says it will recommend to shareholders. IG's Alastair McCaig.