v3.26.1
SEGMENT AND CUSTOMER REPORTING
 6 Months Ended
Jun. 30, 2026
Segment Reporting [Abstract]  
SEGMENT AND CUSTOMER REPORTING SEGMENT AND CUSTOMER REPORTING
 
Segments:

Celestica serves customers in two operating and reportable segments. Our CCS segment consists of our Communications and Enterprise (servers and storage) end markets. Our ATS segment consists of our ATS end market, and is comprised of our Aerospace and Defense, Industrial, HealthTech, and Capital Equipment businesses. Segment performance is evaluated based on segment revenue, segment income and segment margin (segment income as a percentage of segment revenue). Segment income is defined as a segment's revenue less its cost of sales and its allocatable portion of selling, general and administrative expenses (SG&A) and research and development expenses (collectively, Segment Costs). See note 21 to our 2025 AFS for a description of the businesses that comprise our segments, how segment revenue is attributed, how costs are allocated to our segments, and how segment income and segment margin are determined.
Information regarding each reportable segment for the periods indicated is set forth below:
Revenue by segment:Three months ended June 30Six months ended June 30
2026202520262025
% of total% of total% of total% of total
CCS
Communications$2,653.2 56 %$1,641.2 57 %$5,063.8 58 %$3,068.9 56 %
Enterprise1,157.1 25 %433.1 15 %1,987.5 23 %846.8 15 %
$3,810.3 81 %$2,074.3 72 %$7,051.3 81 %$3,915.7 71 %
ATS888.3 19 %819.1 28 %1,694.3 19 %1,626.3 29 %
Total revenue$4,698.6 $2,893.4 $8,745.6 $5,542.0 

Segment Costs by segment:Three months ended June 30Six months ended June 30
2026202520262025
CCS cost of sales$3,374.0 $1,829.6 $6,252.4 $3,460.2 
CCS other Segment Costs106.4 73.5 191.8 137.2 
ATS cost of sales785.9 726.1 1,496.2 1,452.6 
ATS other Segment Costs46.0 49.5 93.7 89.5 
Total Segment Costs$4,312.3 $2,678.7 $8,034.1 $5,139.5 

Segment income, segment margin, and reconciliation of segment income to earnings before income taxes:Three months ended June 30Six months ended June 30
Note2026202520262025
Segment MarginSegment MarginSegment MarginSegment Margin
CCS segment income and margin$329.9 8.7%$171.2 8.3%$607.1 8.6%$318.3 8.1%
ATS segment income and margin56.4 6.3%43.5 5.3%104.4 6.2%84.2 5.2%
Total segment income386.3 214.7 711.5 402.5 
Reconciling items:
Finance costs21.2 14.4 39.2 29.4 
Interest income(3.8)(0.9)(5.8)(2.2)
Miscellaneous expense (income)
11(0.7)1.7 (0.9)3.1 
Employee SBC expense19.3 15.2 49.8 41.2 
TRS fair value adjustment (TRS FVA): gains(104.1)(97.4)(87.1)(78.3)
Amortization of intangible assets (excluding computer software)9.9 9.9 19.9 19.9 
Restructuring and other charges (recoveries)
102.9 14.5 (1.5)18.4 
Earnings before income taxes$441.6 $257.3 $697.9 $371.0 

Customers:

Three customers (all in our CCS segment) individually represented 10% or more of total revenue in Q2 2026 (32%, 17% and 14%) and 1H 2026 (34%, 16% and 15%).
Two customers (both in our CCS segment) individually represented 10% or more of total revenue in the second quarter of 2025 (Q2 2025) (31% and 13%). Three customers (all in our CCS segment) individually represented 10% or more of total revenue in the first half of 2025 (1H 2025) (30%, 13% and 10%).