The re-weighting of the Nasdaq-100, which is expected to be announced today, could harm Apple's share price. But that may be the least of the tech giant's problems right now.
Dell will highlight a handful of tech company results this week. Also reporting earnings will be food giants Smucker and Campbell Soup, also Marriott and other members of the lodging and hospitality industry, and the first of a long string of results from retailers.

