Celestica (CLS) Q1 2026: CCS Revenue Surges 76% as Hyperscaler Demand Accelerates
Celestica delivered record Q1 operating margins and raised its 2026 revenue outlook by $2 billion, propelled by hyperscaler-driven growth in its CCS segment. Management signaled unprecedented demand visibility into 2027, anchored by awarded programs and extended customer commitments. Supply chain constraints remain, but execution strength and long-term capacity planning are positioning Celestica to capitalize on the AI and networking infrastructure buildout.
Summary
- Hyperscaler-Led Growth: CCS segment outperformance and new program wins drive multi-year expansion runway.
- Margin Strength: Operating leverage and mix shift lift margins, with disciplined capital allocation supporting growth.
- Visibility and Execution: Extended customer commitments and supply chain alignment underpin sustained momentum into 2027.
Performance Analysis
Celestica’s Q1 results highlight a dramatic shift in scale and profitability, with revenue rising sharply to $4.05 billion, powered by the Communications and Enterprise segments within CCS, which now account for 80% of the business. Adjusted operating margin reached a company high of 8%, reflecting both volume-driven leverage and improved segment mix. The ATS segment, while flat year over year, showed margin recovery as portfolio optimization efforts took hold, and HealthTech demand offset softness in capital equipment.
Enterprise end market growth—driven by AI/ML compute ramp-ups—was slightly gated by select component shortages, but management emphasized these were supply, not demand, related. Gross margin improved to 11.3%, reflecting productivity gains and favorable mix. Cash cycle days improved, and free cash flow remained solid at $138 million, even as inventory levels rose to support the CCS ramp. Capital expenditures were elevated, consistent with a $1 billion full-year plan to expand capacity for awarded programs.
- CCS Acceleration: Communications revenue up 69% and Enterprise up 101%, both outpacing expectations and driven by hyperscaler adoption of 800G and AI compute platforms.
- Operational Leverage: Segment margin in CCS rose 60 basis points, while ATS margin improved 100 basis points, confirming the benefit of mix and scale.
- Liquidity and Balance Sheet: Amended credit facility boosts available liquidity to over $2 billion, supporting aggressive investment in growth capacity.
Celestica’s ability to translate surging demand into higher margins and disciplined cash flow signals a step change in its operating model, with supply chain execution and customer alignment as key differentiators in a constrained environment.
Executive Commentary
"Our awarded backlog and the opportunity pipeline with both existing and new customers are the strongest they have ever been during my tenure as CEO. We continue to see exceptionally strong and accelerating demand from our hyperscale customer base, complemented by a steadily strengthening outlook in our ATS segment."
Rob Mayonis, President and Chief Executive Officer
"Our capital expenditures were $230 million, or 5.7% of revenue, consistent with our prior communication, our full year 2026 capital expenditure guidance remains unchanged at approximately $1 billion to enable significant growth in our CCS segment. This investment is supported by awarded programs and our increased level of visibility to a multi-year capacity alignment with our key customers."
Mandeep Chawla, Chief Financial Officer
Strategic Positioning
1. Hyperscaler Program Momentum
Celestica’s CCS segment is experiencing unprecedented demand, fueled by hyperscaler customers ramping 800G and 1.6T switch programs, as well as next-generation AI/ML compute platforms. Management now expects 70% CCS revenue growth in 2026, with awarded programs and new wins—such as the co-packaged optics Ethernet switch for a top hyperscaler—validating Celestica’s advancement up the value chain as a co-design and manufacturing partner for complex, next-gen infrastructure.
2. Capital Allocation and Capacity Planning
Celestica is executing a disciplined, ROI-driven capital investment strategy, with $1 billion in CapEx for 2026 and a placeholder for $1.5 billion in 2027. Capacity expansions in Southeast Asia and Texas are tied directly to long-term customer commitments, with many programs supported by contractual protections and extended demand visibility into 2028. This approach is designed to ensure that supply and physical capacity align with multi-year demand signals.
3. Segment Diversification and Portfolio Optimization
While CCS dominates growth, ATS is returning to expansion—particularly in capital equipment, where market forecasts for wafer fab equipment are strengthening. HealthTech and Industrial programs are also contributing to stability, and portfolio reshaping is improving ATS margins. This diversification supports margin resilience and reduces dependency on any single end market.
4. Execution Strength in Supply-Constrained Environment
Management emphasized that supply, not demand, is the gating factor for growth, particularly for custom silicon, memory, and advanced PCB components. Celestica’s execution capability—advanced planning, rapid scaling, and strong supplier relationships—positions it to gain share in turbulent supply environments, as evidenced during the pandemic and now as component constraints intensify.
5. R&D Investment and Value Chain Advancement
R&D headcount has risen sharply, with 1,350 design engineers now focused on next-year and out-year programs. This investment is enabling Celestica to move up the stack, from traditional EMS (electronics manufacturing services) to system-level design and co-development with hyperscalers, supporting both scale-up and scale-out architectures.
Key Considerations
This quarter marks a material inflection in Celestica’s scale, margin structure, and long-term demand visibility, driven by hyperscaler infrastructure cycles and the company’s ability to secure multi-year program wins.
Key Considerations:
- Customer Concentration Risk: Three customers accounted for 65% of Q1 revenue, underscoring the importance of hyperscaler relationships but also highlighting concentration risk.
- Supply Chain Constraints as Growth Governor: Extended lead times and allocation of custom silicon and memory are currently pacing revenue realization, though management expects improvement as supplier capacity ramps.
- Margin Sustainability: Operating leverage and mix are supporting margin gains, but rising input costs—particularly for memory and silicon—pose ongoing headwinds even as pricing discipline is maintained.
- Portfolio Diversification: ATS segment is showing signs of renewed growth and margin expansion, providing a buffer against potential volatility in CCS.
Risks
Sustained supply chain constraints—particularly in custom silicon, memory, and advanced PCBs—could cap upside in both CCS and ATS segments, despite robust demand visibility. Customer concentration remains a structural risk, as a handful of hyperscalers drive the majority of revenue. Capital intensity is rising, and while investments are tied to awarded programs, any shift in hyperscaler demand or technology cycles could impact ROI and free cash flow realization. Management’s guidance assumes no major disruptions, but the environment remains dynamic, with potential for both upside and downside surprises.
Forward Outlook
For Q2 2026, Celestica guided to:
- Revenue of $4.15 billion to $4.45 billion, representing 49% YoY growth at the midpoint
- Adjusted EPS of $2.14 to $2.34, up 61% YoY at the midpoint
For full-year 2026, management raised guidance:
- Revenue outlook increased to $19 billion (from $17 billion), with adjusted EPS raised to $10.15 (from $8.75)
- Adjusted operating margin target raised to 8.1% (from 7.8%)
- Free cash flow guidance held at $500 million, reflecting $1 billion in CapEx
Management highlighted:
- “High confidence” in the 2026 outlook, with improved visibility and awarded backlog extending into 2028
- Continued supply chain constraints factored into guidance, with customer demand signals and supplier commitments underpinning forecasts
Takeaways
Celestica’s Q1 marks a structural pivot to higher scale and profitability, with hyperscaler-driven demand and execution strength supporting a multi-year growth runway.
- Hyperscaler Demand as Primary Engine: CCS growth, new program wins, and customer commitments are driving both short- and long-term expansion, with program ramps in networking and AI compute underpinning guidance raises.
- Execution in a Constrained Environment: Supply chain management and rapid scaling remain key differentiators, enabling Celestica to capture share and maintain margin discipline even as input costs rise.
- Key Watch for 2027: Investors should monitor the ramp of 1.6T and digital native programs, ATS margin expansion, and the sustainability of customer concentration as CapEx intensity remains elevated.
Conclusion
Celestica has entered a new phase of hyperscaler-fueled growth, with raised guidance and margin expansion reflecting both operational execution and multi-year demand visibility. Supply chain and customer concentration risks persist, but disciplined capital allocation and strategic alignment with key customers position Celestica to benefit from the ongoing buildout of AI and cloud infrastructure.
Industry Read-Through
Celestica’s results confirm that the data center infrastructure cycle—particularly for networking and AI/ML compute platforms—is in full acceleration, with hyperscalers driving record backlogs and long-term supplier commitments. Component and capacity constraints are a sector-wide reality, and EMS providers with execution strength and system-level design capabilities are best positioned to capture share. Capital intensity is rising across the supply chain, with multi-year CapEx plans and customer-aligned investment models becoming the new norm. Industry peers should expect continued margin bifurcation, as those able to secure supply and deliver on complex, high-value programs will outperform.