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Side-by-side financial comparison of iRhythm Holdings, Inc. (IRTC) and Seadrill Ltd (SDRL). Click either name above to swap in a different company.

Seadrill Ltd is the larger business by last-quarter revenue ($273.0M vs $208.9M, roughly 1.3× iRhythm Holdings, Inc.). iRhythm Holdings, Inc. runs the higher net margin — 2.7% vs -3.7%, a 6.3% gap on every dollar of revenue. Over the past eight quarters, iRhythm Holdings, Inc.'s revenue compounded faster (25.8% CAGR vs -8.9%).

iRhythm Holdings is a digital healthcare company focused on cardiac care, developing and commercializing wearable ambulatory heart monitoring devices paired with AI-powered analytical tools. It primarily serves healthcare providers and patients across the United States, helping to detect undiagnosed arrhythmias such as atrial fibrillation through convenient long-term heart rhythm tracking that delivers actionable clinical insights.

Seadrill is an offshore drilling contractor providing worldwide offshore drilling services to the oil and gas industry. Its primary business is the ownership and operation of drillships, semi-submersible rigs, and jack-up rigs for operations in shallow to ultra-deep water in both benign and harsh environments. It provides a contract-based service and primarily serves the oil super-majors, integrated oil and gas, state-owned national oil, and independent oil and gas companies.

IRTC vs SDRL — Head-to-Head

Bigger by revenue
SDRL
SDRL
1.3× larger
SDRL
$273.0M
$208.9M
IRTC
Higher net margin
IRTC
IRTC
6.3% more per $
IRTC
2.7%
-3.7%
SDRL
Faster 2-yr revenue CAGR
IRTC
IRTC
Annualised
IRTC
25.8%
-8.9%
SDRL

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
IRTC
IRTC
SDRL
SDRL
Revenue
$208.9M
$273.0M
Net Profit
$5.6M
$-10.0M
Gross Margin
70.9%
Operating Margin
1.1%
-1.1%
Net Margin
2.7%
-3.7%
Revenue YoY
27.1%
Net Profit YoY
518.5%
EPS (diluted)
$0.18

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
IRTC
IRTC
SDRL
SDRL
Q4 25
$208.9M
$273.0M
Q3 25
$192.9M
$280.0M
Q2 25
$186.7M
$288.0M
Q1 25
$158.7M
$248.0M
Q4 24
$164.3M
Q3 24
$147.5M
$263.0M
Q2 24
$148.0M
$267.0M
Q1 24
$131.9M
$275.0M
Net Profit
IRTC
IRTC
SDRL
SDRL
Q4 25
$5.6M
$-10.0M
Q3 25
$-5.2M
$-11.0M
Q2 25
$-14.2M
$-42.0M
Q1 25
$-30.7M
$-14.0M
Q4 24
$-1.3M
Q3 24
$-46.2M
$32.0M
Q2 24
$-20.1M
$253.0M
Q1 24
$-45.7M
$60.0M
Gross Margin
IRTC
IRTC
SDRL
SDRL
Q4 25
70.9%
Q3 25
71.1%
Q2 25
71.2%
Q1 25
68.8%
Q4 24
70.0%
Q3 24
68.8%
Q2 24
69.9%
Q1 24
66.3%
Operating Margin
IRTC
IRTC
SDRL
SDRL
Q4 25
1.1%
-1.1%
Q3 25
-4.4%
9.3%
Q2 25
-10.0%
2.1%
Q1 25
-20.5%
7.3%
Q4 24
-2.5%
Q3 24
-34.1%
17.9%
Q2 24
-15.5%
Q1 24
-28.9%
29.1%
Net Margin
IRTC
IRTC
SDRL
SDRL
Q4 25
2.7%
-3.7%
Q3 25
-2.7%
-3.9%
Q2 25
-7.6%
-14.6%
Q1 25
-19.3%
-5.6%
Q4 24
-0.8%
Q3 24
-31.3%
12.2%
Q2 24
-13.6%
94.8%
Q1 24
-34.6%
21.8%
EPS (diluted)
IRTC
IRTC
SDRL
SDRL
Q4 25
$0.18
Q3 25
$-0.16
$-0.17
Q2 25
$-0.44
$-0.68
Q1 25
$-0.97
$-0.23
Q4 24
$-0.03
Q3 24
$-1.48
$0.49
Q2 24
$-0.65
$3.49
Q1 24
$-1.47
$0.81

Balance Sheet & Financial Strength

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

Metric
IRTC
IRTC
SDRL
SDRL
Cash + ST InvestmentsLiquidity on hand
$583.8M
$339.0M
Total DebtLower is stronger
$613.0M
Stockholders' EquityBook value
$152.7M
$2.9B
Total Assets
$1.0B
$3.9B
Debt / EquityLower = less leverage
0.21×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IRTC
IRTC
SDRL
SDRL
Q4 25
$583.8M
$339.0M
Q3 25
$565.2M
$402.0M
Q2 25
$545.5M
$393.0M
Q1 25
$520.6M
$404.0M
Q4 24
$535.6M
Q3 24
$522.0M
Q2 24
$561.5M
$835.0M
Q1 24
$569.1M
Total Debt
IRTC
IRTC
SDRL
SDRL
Q4 25
$613.0M
Q3 25
$612.0M
Q2 25
$612.0M
Q1 25
$611.0M
Q4 24
Q3 24
Q2 24
$609.0M
Q1 24
Stockholders' Equity
IRTC
IRTC
SDRL
SDRL
Q4 25
$152.7M
$2.9B
Q3 25
$121.9M
$2.9B
Q2 25
$103.7M
$2.9B
Q1 25
$86.7M
$2.9B
Q4 24
$90.9M
Q3 24
$71.8M
$2.9B
Q2 24
$99.2M
$3.1B
Q1 24
$90.3M
$2.9B
Total Assets
IRTC
IRTC
SDRL
SDRL
Q4 25
$1.0B
$3.9B
Q3 25
$995.2M
$4.1B
Q2 25
$964.0M
$4.1B
Q1 25
$926.1M
$4.1B
Q4 24
$931.4M
Q3 24
$909.7M
Q2 24
$919.2M
$4.3B
Q1 24
$909.8M
Debt / Equity
IRTC
IRTC
SDRL
SDRL
Q4 25
0.21×
Q3 25
0.21×
Q2 25
0.21×
Q1 25
0.21×
Q4 24
Q3 24
Q2 24
0.20×
Q1 24

Cash Flow & Capital Efficiency

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

Metric
IRTC
IRTC
SDRL
SDRL
Operating Cash FlowLast quarter
$26.2M
$-40.0M
Free Cash FlowOCF − Capex
$14.5M
FCF MarginFCF / Revenue
6.9%
Capex IntensityCapex / Revenue
5.6%
Cash ConversionOCF / Net Profit
4.70×
TTM Free Cash FlowTrailing 4 quarters
$34.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IRTC
IRTC
SDRL
SDRL
Q4 25
$26.2M
$-40.0M
Q3 25
$34.9M
$28.0M
Q2 25
$27.7M
$11.0M
Q1 25
$-7.9M
$-27.0M
Q4 24
$19.2M
Q3 24
$24.3M
$-27.0M
Q2 24
$11.8M
$79.0M
Q1 24
$-52.0M
$29.0M
Free Cash Flow
IRTC
IRTC
SDRL
SDRL
Q4 25
$14.5M
Q3 25
$20.1M
Q2 25
$17.3M
Q1 25
$-17.3M
Q4 24
$12.4M
Q3 24
$15.5M
Q2 24
$3.4M
Q1 24
$-61.8M
FCF Margin
IRTC
IRTC
SDRL
SDRL
Q4 25
6.9%
Q3 25
10.4%
Q2 25
9.3%
Q1 25
-10.9%
Q4 24
7.5%
Q3 24
10.5%
Q2 24
2.3%
Q1 24
-46.8%
Capex Intensity
IRTC
IRTC
SDRL
SDRL
Q4 25
5.6%
Q3 25
7.7%
Q2 25
5.6%
Q1 25
5.9%
Q4 24
4.2%
Q3 24
6.0%
Q2 24
5.7%
Q1 24
7.4%
Cash Conversion
IRTC
IRTC
SDRL
SDRL
Q4 25
4.70×
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
-0.84×
Q2 24
0.31×
Q1 24
0.48×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IRTC
IRTC

Commercial Payors$111.7M53%
Centers For Medicare And Medicaid$49.2M24%
Healthcare Institutions$34.3M16%
Non Contracted Third Party Payors$13.7M7%

SDRL
SDRL

Segment breakdown not available.

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