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How Celestica (CLS) makes money

Celestica (CLS) made $5.8B of revenue in the third quarter 2026 (Q3 2026), +83% from a year earlier. CCS brought in $4.9B (84%); ATS brought in $957M (16%). Of every dollar of revenue, 11¢ was left as gross profit, 8¢ was left as operating profit, 7¢ was left as net earnings.

Drawing the Sankey…

Celestica revenue by segment, Q3 2026Celestica revenue by segment, Q3 2026CCS$4.9BATS$957M
Celestica: revenue by line, Q1 2025 to Q3 2026Celestica: revenue by line, Q1 2025 to Q3 2026CCSATSCCS: $4.9B latest$4.9BATS: $957M latest$957MQ1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026Q3 2026
ATS went from 30% of revenue in Q1 2025 to 16% in Q3 2026, the largest shift in the mix.
Celestica revenue by quarterCelestica revenue by quarter$2.6BQ1 2025$2.9BQ2 2025$3.2BQ3 2025$3.7BQ4 2025$4.0BQ1 2026$4.7BQ2 2026$5.8BQ3 2026
Celestica: where each dollar of revenue goesCelestica: where each dollar of revenue goesCost of revenue89¢Gross profit11¢Operating expenses3¢Operating profit8¢Income tax1¢Net earnings7¢Operating cash flow7¢Free cash flow2¢

Revenue by segment, Q3 2026

SegmentRevenueShareQ/QY/Y
CCS$4.9B83.6%+28%+102%
ATS$957M16.4%+8%+23%

Where each dollar of revenue goes

LineQ3 2026% of revenue
Revenue$5.8B100.0%
Cost of revenue$5.2B89.0%
Gross profit$641M11.0%
Operating expenses$181M3.1%
Operating profit$460M7.9%
Income tax$58.6M1.0%
Net earnings$397M6.8%
Operating cash flow$390M6.7%
Free cash flow$116M2.0%

Revenue, quarter by quarter

QuarterRevenueY/Y
Q3 2026$5.8B+82%
Q2 2026$4.7B+62%
Q1 2026$4.0B+53%
Q4 2025$3.7B+44%
Q3 2025$3.2B+28%
Q2 2025$2.9B+21%
Q1 2025$2.6B+20%

From Celestica's 10-Q filed Oct 26, 2026 (on EDGAR).

Questions

How does Celestica make money?

Celestica (CLS) made $5.8B of revenue in the third quarter 2026 (Q3 2026), +83% from a year earlier. CCS brought in $4.9B (84%); ATS brought in $957M (16%). Of every dollar of revenue, 11¢ was left as gross profit, 8¢ was left as operating profit, 7¢ was left as net earnings.

What is Celestica's biggest business?

CCS: $4.9B in the third quarter 2026, 84% of revenue, +102% from a year earlier.

What is Celestica's profit margin?

Net earnings were $397M, 6.8% of revenue, in the third quarter 2026; the operating margin was 7.9%.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.