"SIG, the specialist insulation and roofing group, was in focus on Wednesday as takeover rumours circulated. Its shares gained 3.9 per cent to 846½p amid talk that it could be a target for a continental rival. One name in the frame was Saint Gobain, the French building materials group that owns plasterboard maker BPB in the UK."
http://www.ft.com/cms/s/0/1c8c7bac-fb05-11dc-8c3e-000077b07658.html