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Side-by-side financial comparison of iRhythm Holdings, Inc. (IRTC) and MERIT MEDICAL SYSTEMS INC (MMSI). Click either name above to swap in a different company.

MERIT MEDICAL SYSTEMS INC is the larger business by last-quarter revenue ($393.9M vs $208.9M, roughly 1.9× iRhythm Holdings, Inc.). MERIT MEDICAL SYSTEMS INC runs the higher net margin — 9.6% vs 2.7%, a 7.0% gap on every dollar of revenue. On growth, iRhythm Holdings, Inc. posted the faster year-over-year revenue change (27.1% vs 10.9%). MERIT MEDICAL SYSTEMS INC produced more free cash flow last quarter ($74.0M vs $14.5M). Over the past eight quarters, iRhythm Holdings, Inc.'s revenue compounded faster (25.8% CAGR vs 10.3%).

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.

Merit Medical Systems Inc. is a global medical device firm that designs, manufactures, and markets a broad portfolio of interventional and diagnostic products used across cardiology, radiology, oncology, endoscopy, and critical care segments. It primarily serves hospitals, clinics, and healthcare providers worldwide, focusing on minimally invasive solutions that enhance patient outcomes and streamline clinical workflows.

IRTC vs MMSI — Head-to-Head

Bigger by revenue
MMSI
MMSI
1.9× larger
MMSI
$393.9M
$208.9M
IRTC
Growing faster (revenue YoY)
IRTC
IRTC
+16.2% gap
IRTC
27.1%
10.9%
MMSI
Higher net margin
MMSI
MMSI
7.0% more per $
MMSI
9.6%
2.7%
IRTC
More free cash flow
MMSI
MMSI
$59.6M more FCF
MMSI
$74.0M
$14.5M
IRTC
Faster 2-yr revenue CAGR
IRTC
IRTC
Annualised
IRTC
25.8%
10.3%
MMSI

Income Statement — Q4 2025 vs Q4 2025

Metric
IRTC
IRTC
MMSI
MMSI
Revenue
$208.9M
$393.9M
Net Profit
$5.6M
$38.0M
Gross Margin
70.9%
49.6%
Operating Margin
1.1%
13.8%
Net Margin
2.7%
9.6%
Revenue YoY
27.1%
10.9%
Net Profit YoY
518.5%
36.0%
EPS (diluted)
$0.18
$0.64

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
MMSI
MMSI
Q4 25
$208.9M
$393.9M
Q3 25
$192.9M
$384.2M
Q2 25
$186.7M
$382.5M
Q1 25
$158.7M
$355.4M
Q4 24
$164.3M
$355.2M
Q3 24
$147.5M
$339.8M
Q2 24
$148.0M
$338.0M
Q1 24
$131.9M
$323.5M
Net Profit
IRTC
IRTC
MMSI
MMSI
Q4 25
$5.6M
$38.0M
Q3 25
$-5.2M
$27.8M
Q2 25
$-14.2M
$32.6M
Q1 25
$-30.7M
$30.1M
Q4 24
$-1.3M
$27.9M
Q3 24
$-46.2M
$28.4M
Q2 24
$-20.1M
$35.7M
Q1 24
$-45.7M
$28.2M
Gross Margin
IRTC
IRTC
MMSI
MMSI
Q4 25
70.9%
49.6%
Q3 25
71.1%
48.5%
Q2 25
71.2%
48.2%
Q1 25
68.8%
48.4%
Q4 24
70.0%
48.7%
Q3 24
68.8%
46.4%
Q2 24
69.9%
47.7%
Q1 24
66.3%
46.9%
Operating Margin
IRTC
IRTC
MMSI
MMSI
Q4 25
1.1%
13.8%
Q3 25
-4.4%
11.1%
Q2 25
-10.0%
12.3%
Q1 25
-20.5%
11.5%
Q4 24
-2.5%
10.3%
Q3 24
-34.1%
11.0%
Q2 24
-15.5%
13.6%
Q1 24
-28.9%
11.1%
Net Margin
IRTC
IRTC
MMSI
MMSI
Q4 25
2.7%
9.6%
Q3 25
-2.7%
7.2%
Q2 25
-7.6%
8.5%
Q1 25
-19.3%
8.5%
Q4 24
-0.8%
7.9%
Q3 24
-31.3%
8.4%
Q2 24
-13.6%
10.6%
Q1 24
-34.6%
8.7%
EPS (diluted)
IRTC
IRTC
MMSI
MMSI
Q4 25
$0.18
$0.64
Q3 25
$-0.16
$0.46
Q2 25
$-0.44
$0.54
Q1 25
$-0.97
$0.49
Q4 24
$-0.03
$0.46
Q3 24
$-1.48
$0.48
Q2 24
$-0.65
$0.61
Q1 24
$-1.47
$0.48

Balance Sheet & Financial Strength

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

Metric
IRTC
IRTC
MMSI
MMSI
Cash + ST InvestmentsLiquidity on hand
$583.8M
$446.4M
Total DebtLower is stronger
$734.0M
Stockholders' EquityBook value
$152.7M
$1.6B
Total Assets
$1.0B
$2.7B
Debt / EquityLower = less leverage
0.46×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IRTC
IRTC
MMSI
MMSI
Q4 25
$583.8M
$446.4M
Q3 25
$565.2M
$392.5M
Q2 25
$545.5M
$341.8M
Q1 25
$520.6M
$395.5M
Q4 24
$535.6M
$376.7M
Q3 24
$522.0M
$523.1M
Q2 24
$561.5M
$636.7M
Q1 24
$569.1M
$581.9M
Total Debt
IRTC
IRTC
MMSI
MMSI
Q4 25
$734.0M
Q3 25
$732.9M
Q2 25
$731.8M
Q1 25
$730.7M
Q4 24
$729.6M
Q3 24
$750.5M
Q2 24
$801.3M
Q1 24
$800.1M
Stockholders' Equity
IRTC
IRTC
MMSI
MMSI
Q4 25
$152.7M
$1.6B
Q3 25
$121.9M
$1.5B
Q2 25
$103.7M
$1.5B
Q1 25
$86.7M
$1.4B
Q4 24
$90.9M
$1.4B
Q3 24
$71.8M
$1.3B
Q2 24
$99.2M
$1.3B
Q1 24
$90.3M
$1.2B
Total Assets
IRTC
IRTC
MMSI
MMSI
Q4 25
$1.0B
$2.7B
Q3 25
$995.2M
$2.6B
Q2 25
$964.0M
$2.6B
Q1 25
$926.1M
$2.5B
Q4 24
$931.4M
$2.4B
Q3 24
$909.7M
$2.4B
Q2 24
$919.2M
$2.4B
Q1 24
$909.8M
$2.3B
Debt / Equity
IRTC
IRTC
MMSI
MMSI
Q4 25
0.46×
Q3 25
0.48×
Q2 25
0.49×
Q1 25
0.51×
Q4 24
0.53×
Q3 24
0.57×
Q2 24
0.62×
Q1 24
0.65×

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
MMSI
MMSI
Operating Cash FlowLast quarter
$26.2M
$98.5M
Free Cash FlowOCF − Capex
$14.5M
$74.0M
FCF MarginFCF / Revenue
6.9%
18.8%
Capex IntensityCapex / Revenue
5.6%
6.2%
Cash ConversionOCF / Net Profit
4.70×
2.59×
TTM Free Cash FlowTrailing 4 quarters
$34.5M
$215.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IRTC
IRTC
MMSI
MMSI
Q4 25
$26.2M
$98.5M
Q3 25
$34.9M
$75.0M
Q2 25
$27.7M
$83.3M
Q1 25
$-7.9M
$40.6M
Q4 24
$19.2M
$68.7M
Q3 24
$24.3M
$47.3M
Q2 24
$11.8M
$68.5M
Q1 24
$-52.0M
$36.2M
Free Cash Flow
IRTC
IRTC
MMSI
MMSI
Q4 25
$14.5M
$74.0M
Q3 25
$20.1M
$52.5M
Q2 25
$17.3M
$69.6M
Q1 25
$-17.3M
$19.5M
Q4 24
$12.4M
$65.3M
Q3 24
$15.5M
$38.0M
Q2 24
$3.4M
$57.9M
Q1 24
$-61.8M
$24.5M
FCF Margin
IRTC
IRTC
MMSI
MMSI
Q4 25
6.9%
18.8%
Q3 25
10.4%
13.7%
Q2 25
9.3%
18.2%
Q1 25
-10.9%
5.5%
Q4 24
7.5%
18.4%
Q3 24
10.5%
11.2%
Q2 24
2.3%
17.1%
Q1 24
-46.8%
7.6%
Capex Intensity
IRTC
IRTC
MMSI
MMSI
Q4 25
5.6%
6.2%
Q3 25
7.7%
5.8%
Q2 25
5.6%
3.6%
Q1 25
5.9%
5.9%
Q4 24
4.2%
1.0%
Q3 24
6.0%
2.8%
Q2 24
5.7%
3.1%
Q1 24
7.4%
3.6%
Cash Conversion
IRTC
IRTC
MMSI
MMSI
Q4 25
4.70×
2.59×
Q3 25
2.70×
Q2 25
2.56×
Q1 25
1.35×
Q4 24
2.46×
Q3 24
1.66×
Q2 24
1.92×
Q1 24
1.28×

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%

MMSI
MMSI

Other$154.6M39%
Peripheral Intervention$93.2M24%
Cardiac Intervention$50.2M13%
OEM$42.6M11%
Custom Procedural Solutions$33.1M8%
Endoscopy Segment$20.1M5%

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