"Also on the FTSE 250, pub group Mitchells & Butlers was at the centre of speculation suggesting that it may be the subject of a bid from Blackstone and CVC Capital Partners, who may attempt to counter an offer by Punch Taverns, a rival pub company. The speculation helped lift M&B's shares by 2.25p to 445p."
http://www.independent.co.uk/news/business/sharewatch/market-report-barratt-demolishes-rumours-of-rights-issue-784047.html