Zoetis (ZTS) Has a Huge Animal Health Moat. Is It Starting to Crack?

Zoetis Inc. (NYSE:ZTS) has built one of the strongest franchises in animal health. Its products are used by veterinarians around the world; its portfolio spans medicines, vaccines, and diagnostics, and its research capabilities have helped establish entire categories of treatment. But a moat is only valuable if it protects market share and pricing power when […]