Stocks in the news: Hewlett-Packard, Cadbury, Ciena, LDK Solar

Hewlett-Packard Co. (HPQ) is slated to report quarterly results after the closing bell. It pre-announced its fiscal fourth-quarter results of 99 cents a share on revenue of $30.8 billion last week when it acquired 3Com. Still, the market will be watching closely for signs of improving health in the high-tech arena after techs were hit hard last week.

Kraft Foods Inc. (KFT) may raise its offer for Cadbury Plc. (CBY) or offer more cash in its bid if rival takeover offers emerge, a source familiar with the situation said on Sunday. Hershey Co. (HSY), Italy's Ferrero and Switzerland's Nestle are now weighing takeover bids as well. But if no rival bidders emerge, Kraft could keep its bid unchanged, a source told Reuters. With investors hoping for a bidding war, Cadbury shares rose to a new high, up 2.5% ahead of the bell.