Investors Chronicle says "Shares in Greencore Group (GNC) fell by 8 per cent yesterday after its largest US competitor Tyson Foods bought fellow packaged food maker AdvancePierre for $3.2bn (£2.5bn). Shareholders could be nervous that Greencore’s American business Peacock Foods could lose contracts as Tyson takes some of its outsourcing back in house. Our buy tip is under review."