Investors with an interest in Medical - Drugs stocks have likely encountered both United Therapeutics (UTHR) and Zoetis (ZTS) . But which of these two stocks presents investors with the better value opportunity right now? Let's take a closer look. The best way to find great value stocks is to pair a strong Zacks Rank with an impressive grade in the Value category of our Style Scores system. The Zacks Rank is a proven strategy that targets companies with positive earnings estimate revision trends, while our ...