HP, Constellation Brands, CDK Global and more

A man passes a Hewlett Packard display at a technology conference Jim Young | Reuters Check out the companies making headlines in midday trading. HP — Warren Buffett’s Berkshire Hathaway became ...

Conagra, Levi Strauss, Rite Aid and others

Check out the companies making headlines before the bell: Conagra (CAG) – The food producer’s stock tumbled 5.5% in the premarket after issuing a weaker-than-expected forecast for the fiscal yea...