Pfizer
Bulls say: Strong cash flow from sales of blockbusters such as erectile dysfunction remedy Viagra and cholesterol giant Lipitor will protect the company as it struggles to find new hits.
Bears say: Lipitor's 2011 patent expiration is too close for comfort, and there is little in the near-term pipeline at New York-based Pfizer (PFE) to replace it.
Three-month return: -11.6%
Price: $18.09
Projected price in a year: $22.89
