RIO

"Rio Tinto jumped 221p to £47 amid feverish talk that suitor BHP Billiton was preparing to sweeten its potential bid. One story doing the rounds was that BHP would offer 3.5 of its own shares and A$16.50 (£7.40) for every Rio share."

http://www.telegraph.co.uk/money/main.jhtml?xml=/money/2008/01/19/cxmktrep119.xml