"The Dublin and London-listed Horizon Technology also had a good day, seeing its shares soar by 35.75p, or 107.5 per cent, to 69p after saying that it had been approached regarding a possible €1.18-per-share offer for the company."
http://www.independent.co.uk/news/business/sharewatch/market-report-wolseley-plunges-as-brokers-turn-bearish-795754.html