Merck lowers 2026 profit outlook on acquisition-related charges

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The numbers

Yahoo Finance reports that Merck reduced its 2026 profit forecast, citing charges related to its acquisition of Terns Pharmaceuticals. The pharmaceutical company has not independently confirmed the revised guidance. The report did not specify the size of the charge or the updated earnings range.

Why it matters

Deal-related costs typically include one-time expenses for integration, restructuring, and accounting adjustments that depress reported earnings in the near term but are excluded from the adjusted figures analysts use to value the business. Merck previously cut its profit outlook in August while raising its revenue forecast, signaling that top-line growth from new drugs was being offset by deal expenses.

How this compares

Merck lowered its full-year profit forecast on August 4 due to charges tied to the Terns acquisition, even as it raised its revenue outlook on strength in new drug sales. The company had also cut its earnings guidance earlier that same month as acquisition costs weighed on the bottom line. The Terns deal added a pipeline of treatments for metabolic diseases to Merck's portfolio, but the integration costs have repeatedly forced the company to revise its profit expectations downward.

What to watch

Investors will look for detail on the size of the charge and whether Merck's adjusted earnings guidance, which strips out one-time costs, remains intact. The company has not commented on the reported forecast cut or provided a timeline for when integration expenses will subside.

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