LONDON (AP) — Shares in British supermarket chain Morrisons spiked by 11% on Monday as investors priced in the possibility of a bidding war for the company after a third U.S.-based investment company said it was mulling a bid. Private equity firm Apollo Global Management said it is "in the preliminary stages of evaluating a possible offer for Morrisons” and that no formal approach has yet been made. “There can be no certainty that any offer will be made, nor as to the terms on which any such offer might be made,” Apollo said in a statement.