ZoomInfo Technologies Inc. (GTM) experienced a significant 24-hour plunge of 28.31% in post-market trading on Monday. The sharp decline followed the release of the company's first-quarter financial results and a series of announcements detailing a substantial corporate overhaul.

The downturn was primarily driven by the company lowering its full-year revenue guidance for 2026. ZoomInfo now expects revenue of $1.19 billion to $1.21 billion, down from its previous forecast of $1.25 billion to $1.27 billion and below analysts' expectations of $1.26 billion. The company also provided second-quarter revenue guidance of $300 million to $303 million, which fell short of analyst estimates.

Concurrently, ZoomInfo announced a major 2026 restructuring program aimed at simplifying operations and shifting focus upmarket. The plan includes closing its Israel site and transferring operations out of the country by year-end, reducing its workforce by approximately 600 employees (about 20% of its first-quarter headcount), and notifying about 340 employees in the U.S., India, and U.K. of role eliminations. The restructuring is expected to result in pre-tax charges of $45 million to $60 million but aims to reduce annual run-rate operating expenses by about $60 million. While the company reported first-quarter adjusted earnings per share of $0.28, beating the estimate of $0.26, and revenue of $310.2 million versus the $307.9 million estimate, investors reacted negatively to the lowered growth outlook and the significant costs associated with the operational changes.