Investors have been waiting nearly a decade to score a good deal on this healthcare star.The stock market has entered a new period of increased uncertainty and volatility following the Trump Administration's desire to reshape America's trade policies. While the market hasn't crashed outright, it has experienced multiple sessions of sharp losses, as well as dramatic rebounds.Some stocks, such as Zoetis (ZTS 0.79%), seemingly never falter. The stock has traded at an average of 41 times its earnings for the pa ...