Shares of Zoetis (ZTS) tumbled 5.50% in pre-market trading on Thursday after the animal health company reported second-quarter earnings that fell short of Wall Street revenue expectations.

The company posted revenue of $2,468 million for the quarter, missing the IBES consensus estimate of $2,502 million. Earnings per share came in at $1.65. The revenue shortfall appeared to rattle investors, triggering a sharp sell-off in the pre-market session.

The pre-market decline reflects investor disappointment with the top-line miss, as the company's quarterly performance failed to meet analyst projections. The magnitude of the drop suggests heightened sensitivity to the revenue shortfall amid broader market scrutiny of growth metrics.