Is Pfizer Stock in Trouble?

One stock that just can't seem to catch a break of late is Pfizer (PFE 0.23%). Even though it posted some decent earnings numbers, investors can't shake the fear that the business is facing daunting headwinds that could send its $145 billion valuation lower in the months and years ahead. And while the markets have done well overall, shares of Pfizer are down some 11% this year. Is the healthcare stock in big trouble and headed for a greater decline, or are investors perhaps a bit too bearish on the business ...