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Side-by-side financial comparison of ILLUMINA, INC. (ILMN) and Realty Income (O). Click either name above to swap in a different company.

Realty Income is the larger business by last-quarter revenue ($1.5B vs $1.1B, roughly 1.4× ILLUMINA, INC.). Realty Income runs the higher net margin — 19.9% vs 12.3%, a 7.6% gap on every dollar of revenue. On growth, Realty Income posted the faster year-over-year revenue change (11.0% vs 4.8%). Realty Income produced more free cash flow last quarter ($1.2B vs $251.0M). Over the past eight quarters, Realty Income's revenue compounded faster (8.6% CAGR vs -1.3%).

Illumina, Inc. is an American biotechnology company, headquartered in San Diego, California. Incorporated on April 1, 1998, Illumina develops, manufactures, and markets integrated systems for the analysis of genetic variation and biological function. The company provides a line of products and services that serves the sequencing, genotyping and gene expression, and proteomics markets, and serves more than 155 countries.

Realty Income Corporation is a real estate investment trust that invests in free-standing, single-tenant commercial properties in the United States, the United Kingdom, and six other countries in Europe. These properties are subject to NNN Leases. The company is organized in Maryland with its headquarters in San Diego, California.

ILMN vs O — Head-to-Head

Bigger by revenue
O
O
1.4× larger
O
$1.5B
$1.1B
ILMN
Growing faster (revenue YoY)
O
O
+6.2% gap
O
11.0%
4.8%
ILMN
Higher net margin
O
O
7.6% more per $
O
19.9%
12.3%
ILMN
More free cash flow
O
O
$903.0M more FCF
O
$1.2B
$251.0M
ILMN
Faster 2-yr revenue CAGR
O
O
Annualised
O
8.6%
-1.3%
ILMN

Income Statement — Q1 FY2027 vs Q4 FY2025

Metric
ILMN
ILMN
O
O
Revenue
$1.1B
$1.5B
Net Profit
$134.0M
$296.1M
Gross Margin
66.1%
Operating Margin
19.2%
21.7%
Net Margin
12.3%
19.9%
Revenue YoY
4.8%
11.0%
Net Profit YoY
48.3%
EPS (diluted)
$0.87
$0.32

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
ILMN
ILMN
O
O
Q1 26
$1.1B
Q4 25
$1.2B
$1.5B
Q3 25
$1.5B
Q2 25
$1.4B
Q1 25
$1.4B
Q4 24
$1.1B
$1.3B
Q3 24
$1.1B
$1.3B
Q2 24
$1.1B
$1.3B
Net Profit
ILMN
ILMN
O
O
Q1 26
$134.0M
Q4 25
$334.0M
$296.1M
Q3 25
$315.8M
Q2 25
$196.9M
Q1 25
$249.8M
Q4 24
$186.0M
$199.6M
Q3 24
$705.0M
$269.5M
Q2 24
$-2.0B
$259.4M
Gross Margin
ILMN
ILMN
O
O
Q1 26
66.1%
Q4 25
65.5%
Q3 25
Q2 25
Q1 25
Q4 24
65.9%
Q3 24
69.0%
Q2 24
64.8%
Operating Margin
ILMN
ILMN
O
O
Q1 26
19.2%
Q4 25
17.4%
21.7%
Q3 25
23.2%
Q2 25
15.8%
Q1 25
19.3%
Q4 24
15.8%
16.5%
Q3 24
68.6%
21.5%
Q2 24
-147.2%
20.7%
Net Margin
ILMN
ILMN
O
O
Q1 26
12.3%
Q4 25
28.8%
19.9%
Q3 25
21.5%
Q2 25
14.0%
Q1 25
18.1%
Q4 24
16.8%
14.9%
Q3 24
65.3%
20.2%
Q2 24
-178.8%
19.4%
EPS (diluted)
ILMN
ILMN
O
O
Q1 26
$0.87
Q4 25
$2.16
$0.32
Q3 25
$0.35
Q2 25
$0.22
Q1 25
$0.28
Q4 24
$1.16
$0.23
Q3 24
$4.42
$0.30
Q2 24
$-12.48
$0.29

Balance Sheet & Financial Strength

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

Metric
ILMN
ILMN
O
O
Cash + ST InvestmentsLiquidity on hand
$1.2B
$434.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.7B
$39.4B
Total Assets
$6.6B
$72.8B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ILMN
ILMN
O
O
Q1 26
$1.2B
Q4 25
$1.6B
$434.8M
Q3 25
$417.2M
Q2 25
$800.4M
Q1 25
$319.0M
Q4 24
$93.0M
$445.0M
Q3 24
$70.0M
$397.0M
Q2 24
$74.0M
$442.8M
Stockholders' Equity
ILMN
ILMN
O
O
Q1 26
$2.7B
Q4 25
$2.7B
$39.4B
Q3 25
$39.1B
Q2 25
$39.2B
Q1 25
$39.0B
Q4 24
$2.4B
$38.8B
Q3 24
$2.1B
$38.5B
Q2 24
$1.4B
$38.6B
Total Assets
ILMN
ILMN
O
O
Q1 26
$6.6B
Q4 25
$6.6B
$72.8B
Q3 25
$71.3B
Q2 25
$71.4B
Q1 25
$69.8B
Q4 24
$6.3B
$68.8B
Q3 24
$6.0B
$68.5B
Q2 24
$6.1B
$68.1B

Cash Flow & Capital Efficiency

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

Metric
ILMN
ILMN
O
O
Operating Cash FlowLast quarter
$289.0M
$1.2B
Free Cash FlowOCF − Capex
$251.0M
$1.2B
FCF MarginFCF / Revenue
23.0%
77.6%
Capex IntensityCapex / Revenue
3.3%
Cash ConversionOCF / Net Profit
2.16×
4.06×
TTM Free Cash FlowTrailing 4 quarters
$1.1B
$3.9B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ILMN
ILMN
O
O
Q1 26
$289.0M
Q4 25
$321.0M
$1.2B
Q3 25
$943.1M
Q2 25
$1.1B
Q1 25
$787.5M
Q4 24
$364.0M
$972.0M
Q3 24
$316.0M
$841.5M
Q2 24
$80.0M
$981.2M
Free Cash Flow
ILMN
ILMN
O
O
Q1 26
$251.0M
Q4 25
$267.0M
$1.2B
Q3 25
$909.9M
Q2 25
$1.0B
Q1 25
$764.6M
Q4 24
$335.0M
$935.8M
Q3 24
$284.0M
$807.9M
Q2 24
$49.0M
$939.2M
FCF Margin
ILMN
ILMN
O
O
Q1 26
23.0%
Q4 25
23.0%
77.6%
Q3 25
61.9%
Q2 25
73.3%
Q1 25
55.4%
Q4 24
30.3%
69.8%
Q3 24
26.3%
60.7%
Q2 24
4.4%
70.1%
Capex Intensity
ILMN
ILMN
O
O
Q1 26
Q4 25
3.3%
Q3 25
2.3%
Q2 25
1.9%
Q1 25
1.7%
Q4 24
2.6%
2.7%
Q3 24
3.0%
2.5%
Q2 24
2.8%
3.1%
Cash Conversion
ILMN
ILMN
O
O
Q1 26
2.16×
Q4 25
0.96×
4.06×
Q3 25
2.99×
Q2 25
5.39×
Q1 25
3.15×
Q4 24
1.96×
4.87×
Q3 24
0.45×
3.12×
Q2 24
3.78×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ILMN
ILMN

Product revenue$917.0M84%
Service and other revenue$174.0M16%

O
O

Product And Service Retail$900.8M61%
Other$531.5M36%

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