Stocks in the News: Barnes & Noble, Dow Chemical, Hershey

The following is a round-up of news likely to affect stock prices today:

Barnes & Noble Inc. (BKS) shares jumped more than 22% in premarket trading after billionaire Ron Burkle said Monday that his Yucaipa investment funds bought 19% of Barnes & Noble shares because they are undervalued and suggested he wants to own more than a third of the book retailer and criticized investment restrictions set up by the company.