Should You Be Worried About Pfizer Stock?

Pfizer (PFE) stock has returned 17.5% over the past three months, easily outpacing the 3.7% return for the S&P 500. The board also just declared its 352nd quarterly dividend in a row. That reliable payout may be why many investors hold the shares, yet on Pfizer's latest earnings call, management was asked what it would take to cut that dividend. So what is Pfizer's management preparing for.