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Side-by-side financial comparison of CIENA CORP (CIEN) and IES Holdings, Inc. (IESC). Click either name above to swap in a different company.

CIENA CORP is the larger business by last-quarter revenue ($1.2B vs $871.0M, roughly 1.4× IES Holdings, Inc.). IES Holdings, Inc. runs the higher net margin — 10.5% vs 4.1%, a 6.4% gap on every dollar of revenue. CIENA CORP produced more free cash flow last quarter ($134.6M vs $-18.9M). Over the past eight quarters, IES Holdings, Inc.'s revenue compounded faster (11.1% CAGR vs 3.9%).

Ciena Corporation is an American optical networking systems and software company based in Hanover, Maryland. The company has been described as a vital player in optical connectivity. The company reported revenues of $4.8 billion and more than 9,000 employees, as of November 2025. Gary Smith serves as president and chief executive officer (CEO).

IES Holdings, Inc., formerly known as Integrated Electrical Services, Inc., designs and installs integrated electrical and technology systems and provides infrastructure products and services to a variety of end markets, including data centers, residential housing, and commercial and industrial facilities.

CIEN vs IESC — Head-to-Head

Bigger by revenue
CIEN
CIEN
1.4× larger
CIEN
$1.2B
$871.0M
IESC
Higher net margin
IESC
IESC
6.4% more per $
IESC
10.5%
4.1%
CIEN
More free cash flow
CIEN
CIEN
$153.5M more FCF
CIEN
$134.6M
$-18.9M
IESC
Faster 2-yr revenue CAGR
IESC
IESC
Annualised
IESC
11.1%
3.9%
CIEN

Income Statement — Q3 FY2025 vs Q1 FY2026

Metric
CIEN
CIEN
IESC
IESC
Revenue
$1.2B
$871.0M
Net Profit
$50.3M
$91.8M
Gross Margin
41.3%
25.3%
Operating Margin
6.0%
11.2%
Net Margin
4.1%
10.5%
Revenue YoY
16.2%
Net Profit YoY
59.1%
EPS (diluted)
$0.35
$4.51

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
CIEN
CIEN
IESC
IESC
Q4 25
$871.0M
Q3 25
$1.2B
$897.8M
Q2 25
$1.1B
$890.2M
Q1 25
$1.1B
$834.0M
Q4 24
$1.1B
$749.5M
Q3 24
$942.3M
$775.8M
Q2 24
$910.8M
$768.4M
Q1 24
$1.0B
$705.7M
Net Profit
CIEN
CIEN
IESC
IESC
Q4 25
$91.8M
Q3 25
$50.3M
$102.3M
Q2 25
$9.0M
$79.3M
Q1 25
$44.6M
$72.6M
Q4 24
$37.0M
$57.7M
Q3 24
$14.2M
$65.5M
Q2 24
$-16.8M
$66.6M
Q1 24
$49.5M
$56.8M
Gross Margin
CIEN
CIEN
IESC
IESC
Q4 25
25.3%
Q3 25
41.3%
26.0%
Q2 25
40.2%
26.9%
Q1 25
44.0%
25.0%
Q4 24
40.9%
23.8%
Q3 24
42.9%
24.0%
Q2 24
42.7%
25.3%
Q1 24
45.0%
24.3%
Operating Margin
CIEN
CIEN
IESC
IESC
Q4 25
11.2%
Q3 25
6.0%
11.6%
Q2 25
2.9%
12.6%
Q1 25
7.5%
11.1%
Q4 24
5.3%
10.0%
Q3 24
2.8%
9.7%
Q2 24
-0.4%
11.7%
Q1 24
8.2%
11.0%
Net Margin
CIEN
CIEN
IESC
IESC
Q4 25
10.5%
Q3 25
4.1%
11.4%
Q2 25
0.8%
8.9%
Q1 25
4.2%
8.7%
Q4 24
3.3%
7.7%
Q3 24
1.5%
8.4%
Q2 24
-1.8%
8.7%
Q1 24
4.8%
8.0%
EPS (diluted)
CIEN
CIEN
IESC
IESC
Q4 25
$4.51
Q3 25
$0.35
$4.99
Q2 25
$0.06
$3.81
Q1 25
$0.31
$3.50
Q4 24
$0.26
$2.72
Q3 24
$0.10
$3.06
Q2 24
$-0.12
$2.67
Q1 24
$0.34
$2.29

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
CIEN
CIEN
IESC
IESC
Cash + ST InvestmentsLiquidity on hand
$1.3B
$258.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.8B
$961.1M
Total Assets
$5.7B
$1.7B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CIEN
CIEN
IESC
IESC
Q4 25
$258.7M
Q3 25
$1.3B
$231.8M
Q2 25
$1.3B
$168.3M
Q1 25
$1.2B
$88.3M
Q4 24
$1.3B
$112.0M
Q3 24
$1.1B
$135.8M
Q2 24
$1.3B
$44.9M
Q1 24
$1.4B
$106.0M
Stockholders' Equity
CIEN
CIEN
IESC
IESC
Q4 25
$961.1M
Q3 25
$2.8B
$884.0M
Q2 25
$2.8B
$781.4M
Q1 25
$2.8B
$705.8M
Q4 24
$2.8B
$652.4M
Q3 24
$2.9B
$611.1M
Q2 24
$2.9B
$567.5M
Q1 24
$2.9B
$534.8M
Total Assets
CIEN
CIEN
IESC
IESC
Q4 25
$1.7B
Q3 25
$5.7B
$1.6B
Q2 25
$5.7B
$1.5B
Q1 25
$5.6B
$1.4B
Q4 24
$5.6B
$1.3B
Q3 24
$5.6B
$1.2B
Q2 24
$5.6B
$1.2B
Q1 24
$5.6B
$1.1B

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
CIEN
CIEN
IESC
IESC
Operating Cash FlowLast quarter
$174.3M
$27.7M
Free Cash FlowOCF − Capex
$134.6M
$-18.9M
FCF MarginFCF / Revenue
11.0%
-2.2%
Capex IntensityCapex / Revenue
3.3%
5.3%
Cash ConversionOCF / Net Profit
3.47×
0.30×
TTM Free Cash FlowTrailing 4 quarters
$605.5M
$175.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CIEN
CIEN
IESC
IESC
Q4 25
$27.7M
Q3 25
$174.3M
$132.0M
Q2 25
$156.9M
$92.0M
Q1 25
$103.7M
$24.8M
Q4 24
$349.4M
$37.3M
Q3 24
$-159.4M
$92.8M
Q2 24
$58.5M
$82.9M
Q1 24
$266.1M
$33.7M
Free Cash Flow
CIEN
CIEN
IESC
IESC
Q4 25
$-18.9M
Q3 25
$134.6M
$112.0M
Q2 25
$128.2M
$74.8M
Q1 25
$76.8M
$7.9M
Q4 24
$265.8M
$24.1M
Q3 24
$-179.0M
$78.5M
Q2 24
$41.6M
$65.4M
Q1 24
$249.5M
$26.9M
FCF Margin
CIEN
CIEN
IESC
IESC
Q4 25
-2.2%
Q3 25
11.0%
12.5%
Q2 25
11.4%
8.4%
Q1 25
7.2%
0.9%
Q4 24
23.6%
3.2%
Q3 24
-19.0%
10.1%
Q2 24
4.6%
8.5%
Q1 24
24.0%
3.8%
Capex Intensity
CIEN
CIEN
IESC
IESC
Q4 25
5.3%
Q3 25
3.3%
2.2%
Q2 25
2.6%
1.9%
Q1 25
2.5%
2.0%
Q4 24
7.4%
1.8%
Q3 24
2.1%
1.8%
Q2 24
1.9%
2.3%
Q1 24
1.6%
1.0%
Cash Conversion
CIEN
CIEN
IESC
IESC
Q4 25
0.30×
Q3 25
3.47×
1.29×
Q2 25
17.50×
1.16×
Q1 25
2.33×
0.34×
Q4 24
9.44×
0.65×
Q3 24
-11.20×
1.42×
Q2 24
1.24×
Q1 24
5.37×
0.59×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

CIEN
CIEN

Optical Networking$815.5M67%
Routing And Switching$125.9M10%
Platform Softwareand Services Segment$90.0M7%
Maintenance Support And Training$80.7M7%
Installation And Deployment$65.9M5%
Blue Planet Automation Softwareand Services Segment$27.8M2%
Consulting And Network Design$13.6M1%

IESC
IESC

Communications$351.9M40%
Single Family Electrical Contracts$137.0M16%
Custom Engineered Solutions$116.0M13%
Commercialand Industrial$94.8M11%
Single Family Contracts Plumbing HVAC$82.9M10%
Multi Familyand Other$64.2M7%
Industrial Services$24.2M3%

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