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Side-by-side financial comparison of ICON PLC (ICLR) and Realty Income (O). Click either name above to swap in a different company.

ICON PLC is the larger business by last-quarter revenue ($2.0B vs $1.5B, roughly 1.4× Realty Income). Realty Income runs the higher net margin — 19.9% vs 0.1%, a 19.8% gap on every dollar of revenue. On growth, Realty Income posted the faster year-over-year revenue change (11.0% vs 0.6%). Realty Income produced more free cash flow last quarter ($1.2B vs $333.9M). Over the past eight quarters, Realty Income's revenue compounded faster (8.6% CAGR vs 0.6%).

ICON plc is an Irish headquartered multinational healthcare intelligence and clinical research organisation. As of February 2025 had approximately 41,900 employees in 55 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.

ICLR vs O — Head-to-Head

Bigger by revenue
ICLR
ICLR
1.4× larger
ICLR
$2.0B
$1.5B
O
Growing faster (revenue YoY)
O
O
+10.4% gap
O
11.0%
0.6%
ICLR
Higher net margin
O
O
19.8% more per $
O
19.9%
0.1%
ICLR
More free cash flow
O
O
$820.1M more FCF
O
$1.2B
$333.9M
ICLR
Faster 2-yr revenue CAGR
O
O
Annualised
O
8.6%
0.6%
ICLR

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
ICLR
ICLR
O
O
Revenue
$2.0B
$1.5B
Net Profit
$2.4M
$296.1M
Gross Margin
Operating Margin
4.2%
21.7%
Net Margin
0.1%
19.9%
Revenue YoY
0.6%
11.0%
Net Profit YoY
-98.8%
48.3%
EPS (diluted)
$0.03
$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
ICLR
ICLR
O
O
Q4 25
$1.5B
Q3 25
$2.0B
$1.5B
Q2 25
$2.0B
$1.4B
Q1 25
$2.0B
$1.4B
Q4 24
$1.3B
Q3 24
$2.0B
$1.3B
Q2 24
$2.1B
$1.3B
Q1 24
$2.1B
$1.3B
Net Profit
ICLR
ICLR
O
O
Q4 25
$296.1M
Q3 25
$2.4M
$315.8M
Q2 25
$183.0M
$196.9M
Q1 25
$154.2M
$249.8M
Q4 24
$199.6M
Q3 24
$197.1M
$269.5M
Q2 24
$146.9M
$259.4M
Q1 24
$187.4M
$132.3M
Operating Margin
ICLR
ICLR
O
O
Q4 25
21.7%
Q3 25
4.2%
23.2%
Q2 25
10.4%
15.8%
Q1 25
11.0%
19.3%
Q4 24
16.5%
Q3 24
14.1%
21.5%
Q2 24
10.8%
20.7%
Q1 24
13.7%
11.9%
Net Margin
ICLR
ICLR
O
O
Q4 25
19.9%
Q3 25
0.1%
21.5%
Q2 25
9.1%
14.0%
Q1 25
7.7%
18.1%
Q4 24
14.9%
Q3 24
9.7%
20.2%
Q2 24
6.9%
19.4%
Q1 24
9.0%
10.5%
EPS (diluted)
ICLR
ICLR
O
O
Q4 25
$0.32
Q3 25
$0.03
$0.35
Q2 25
$2.30
$0.22
Q1 25
$1.90
$0.28
Q4 24
$0.23
Q3 24
$2.36
$0.30
Q2 24
$1.76
$0.29
Q1 24
$2.25
$0.16

Balance Sheet & Financial Strength

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

Metric
ICLR
ICLR
O
O
Cash + ST InvestmentsLiquidity on hand
$468.9M
$434.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$9.3B
$39.4B
Total Assets
$16.5B
$72.8B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ICLR
ICLR
O
O
Q4 25
$434.8M
Q3 25
$468.9M
$417.2M
Q2 25
$390.4M
$800.4M
Q1 25
$526.7M
$319.0M
Q4 24
$445.0M
Q3 24
$695.5M
$397.0M
Q2 24
$506.6M
$442.8M
Q1 24
$396.1M
$680.2M
Stockholders' Equity
ICLR
ICLR
O
O
Q4 25
$39.4B
Q3 25
$9.3B
$39.1B
Q2 25
$9.6B
$39.2B
Q1 25
$9.5B
$39.0B
Q4 24
$38.8B
Q3 24
$9.8B
$38.5B
Q2 24
$9.6B
$38.6B
Q1 24
$9.4B
$39.0B
Total Assets
ICLR
ICLR
O
O
Q4 25
$72.8B
Q3 25
$16.5B
$71.3B
Q2 25
$16.6B
$71.4B
Q1 25
$16.7B
$69.8B
Q4 24
$68.8B
Q3 24
$17.2B
$68.5B
Q2 24
$17.0B
$68.1B
Q1 24
$17.0B
$68.3B

Cash Flow & Capital Efficiency

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

Metric
ICLR
ICLR
O
O
Operating Cash FlowLast quarter
$387.6M
$1.2B
Free Cash FlowOCF − Capex
$333.9M
$1.2B
FCF MarginFCF / Revenue
16.3%
77.6%
Capex IntensityCapex / Revenue
2.6%
3.3%
Cash ConversionOCF / Net Profit
164.59×
4.06×
TTM Free Cash FlowTrailing 4 quarters
$1.0B
$3.9B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ICLR
ICLR
O
O
Q4 25
$1.2B
Q3 25
$387.6M
$943.1M
Q2 25
$146.2M
$1.1B
Q1 25
$268.2M
$787.5M
Q4 24
$972.0M
Q3 24
$402.7M
$841.5M
Q2 24
$218.6M
$981.2M
Q1 24
$327.1M
$778.7M
Free Cash Flow
ICLR
ICLR
O
O
Q4 25
$1.2B
Q3 25
$333.9M
$909.9M
Q2 25
$113.9M
$1.0B
Q1 25
$239.3M
$764.6M
Q4 24
$935.8M
Q3 24
$359.3M
$807.9M
Q2 24
$182.3M
$939.2M
Q1 24
$299.9M
$769.0M
FCF Margin
ICLR
ICLR
O
O
Q4 25
77.6%
Q3 25
16.3%
61.9%
Q2 25
5.6%
73.3%
Q1 25
12.0%
55.4%
Q4 24
69.8%
Q3 24
17.7%
60.7%
Q2 24
8.6%
70.1%
Q1 24
14.3%
61.0%
Capex Intensity
ICLR
ICLR
O
O
Q4 25
3.3%
Q3 25
2.6%
2.3%
Q2 25
1.6%
1.9%
Q1 25
1.4%
1.7%
Q4 24
2.7%
Q3 24
2.1%
2.5%
Q2 24
1.7%
3.1%
Q1 24
1.3%
0.8%
Cash Conversion
ICLR
ICLR
O
O
Q4 25
4.06×
Q3 25
164.59×
2.99×
Q2 25
0.80×
5.39×
Q1 25
1.74×
3.15×
Q4 24
4.87×
Q3 24
2.04×
3.12×
Q2 24
1.49×
3.78×
Q1 24
1.74×
5.89×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ICLR
ICLR

Other Customers$681.3M33%
Clients1125$549.4M27%
Clients15$503.3M25%
Clients610$308.8M15%

O
O

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

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