"On the downside, bid speculation failed to rescue Antofagasta. Early-morning whispers suggested the company had caught the fancy of a prominent sector counterpart. The rumours, which, by mid-afternoon, had the unidentified suitor working on a formal bid, were neutralised by weak copper prices, which pulled Antofagasta's stock down by 0.22 per cent, or 1.5p, to 674p."
http://www.independent.co.uk/news/business/sharewatch/market-report-xstrata-extracts-fresh-interest-from-vale-bid-talk-779168.html