Sector hotting up in the US

Potash jumps after takeover speculation..Potash shares surged as much as 6.5% before pulling back, after TheFly.com reported a rumor among traders that the company had received an unsolicited takeover offer and hired an investment bank. An unnamed analyst tells Reuters he is sceptical about an offer, noting that today marks the end of the quarter and that such speculation happens every few months. Recall that the Canadian government blocked a hostile bid for POT from BHP Billiton in 2010 because of the anger the proposed takeover raised in the company's home province of Saskatchewan