UK shares inched up on Monday, led by Shire on expectations of a higher offer for the drugmaker from U.S. suitor AbbVie, Reuters reported. Shares in Shire advanced 1.6 percent, the top blue-chip riser, following media reports that AbbVie's boss is set to fly to London this week to court Shire's shareholders and attempt to convince them of the merits of a potential takeover. This could culminate in an increased bid, traders said, with Shire having spurned a $46 billion takeover offer from AbbVie as inadequate. Trading volume in Shire was robust, at half of its 90-day daily average after just an hour's trade, against the FTSE 100 on just 9 percent of its average. The broader FTSE 100 was up 0.1 percent at 6,764.28 points by 0810 GMT, meaning it is broadly flat this year, against a rise of around 4 percent seen from the euro zone's Euro STOXX 50.
