Analysis published 24 Aug 2026

AI-generated · cited to primary sources · not investment advice

Celestica, Inc. Common Stock (CLS) Mar 2026 Filing Analysis

01 · Management Credibility

Does management do what it says?

Power Electronics And Connectors Demand Cycle

Continue pursuing growth in data-center networking, AI/ML compute, cloud and hyperscaler programs, including scaling operations and capacity to meet anticipated customer demand.

“This demand growth has required our business to place a greater focus on various operational factors, including the management of our manufacturing capacity, human capital dedicated to these programs, supply chain, capital investments, and working capital requirements.”

Celestica, Inc. Common Stock · QUARTERLY_REPORT · Mar 2026 · p.22

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04 · Risk

What could break the thesis?

Power Electronics And Connectors Revenue Growth

The risk intensified during Q1 2026. CCS revenue increased 76% year over year and rose to 80% of total revenue from 70%. Communications revenue increased 69%, while Enterprise revenue increased 101%, largely because of networking switch ramps and an AI/ML compute program with one hyperscaler. ATS revenue was essentially flat year over year at $806.0 million versus $807.2 million. The Q2 baseline shows CCS still at 81% of revenue and Enterprise growth accelerating to 167% year over year, confirming continued concentration in a narrow set of growth programs. (1 intensifying)

“CCS segment revenue increased $1,399.6 million (76%) in Q1 2026 compared to Q1 2025... driven by data center networking demand... Enterprise end market revenue increased $416.7 million (101%)... driven by the ramp-up of an AI/ML compute program with one of our hyperscaler customers.”

Celestica, Inc. Common Stock · QUARTERLY_REPORT · Mar 2026 · p.27

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