Zoetis Inc. moved to the Russell Midcap Index in late June 2026. The company was previously listed in the Russell Top 200 and 1000 indexes.
This reclassification occurred during the annual index reconstitution. The company’s stock has declined approximately 40% year-to-date.
Shares have fallen 50% over the past year. Zoetis missed first-quarter analyst expectations in May 2026.
The company subsequently lowered its full-year revenue and profit guidance. Management attributed the weaker outlook to softer U.S. demand for companion animal products.
Increased price sensitivity and intensified competition also impacted performance.