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

iRhythm Holdings, Inc. is the larger business by last-quarter revenue ($208.9M vs $162.6M, roughly 1.3× Ribbon Communications Inc.). Ribbon Communications Inc. runs the higher net margin — 54.8% vs 2.7%, a 52.1% gap on every dollar of revenue. On growth, iRhythm Holdings, Inc. posted the faster year-over-year revenue change (27.1% vs -10.3%). Over the past eight quarters, iRhythm Holdings, Inc.'s revenue compounded faster (25.8% CAGR vs -8.1%).

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.

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

IRTC vs RBBN — Head-to-Head

Bigger by revenue
IRTC
IRTC
1.3× larger
IRTC
$208.9M
$162.6M
RBBN
Growing faster (revenue YoY)
IRTC
IRTC
+37.4% gap
IRTC
27.1%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
52.1% more per $
RBBN
54.8%
2.7%
IRTC
Faster 2-yr revenue CAGR
IRTC
IRTC
Annualised
IRTC
25.8%
-8.1%
RBBN

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
IRTC
IRTC
RBBN
RBBN
Revenue
$208.9M
$162.6M
Net Profit
$5.6M
$89.1M
Gross Margin
70.9%
42.9%
Operating Margin
1.1%
37.6%
Net Margin
2.7%
54.8%
Revenue YoY
27.1%
-10.3%
Net Profit YoY
518.5%
EPS (diluted)
$0.18
$0.50

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
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$208.9M
$227.3M
Q3 25
$192.9M
$215.4M
Q2 25
$186.7M
$220.6M
Q1 25
$158.7M
$181.3M
Q4 24
$164.3M
$251.4M
Q3 24
$147.5M
$210.2M
Q2 24
$148.0M
$192.6M
Net Profit
IRTC
IRTC
RBBN
RBBN
Q1 26
$89.1M
Q4 25
$5.6M
Q3 25
$-5.2M
$-12.1M
Q2 25
$-14.2M
$-11.1M
Q1 25
$-30.7M
$-26.2M
Q4 24
$-1.3M
Q3 24
$-46.2M
$-13.4M
Q2 24
$-20.1M
$-16.8M
Gross Margin
IRTC
IRTC
RBBN
RBBN
Q1 26
42.9%
Q4 25
70.9%
53.3%
Q3 25
71.1%
50.1%
Q2 25
71.2%
49.6%
Q1 25
68.8%
45.4%
Q4 24
70.0%
55.7%
Q3 24
68.8%
52.1%
Q2 24
69.9%
50.8%
Operating Margin
IRTC
IRTC
RBBN
RBBN
Q1 26
37.6%
Q4 25
1.1%
4.1%
Q3 25
-4.4%
1.3%
Q2 25
-10.0%
1.9%
Q1 25
-20.5%
-10.8%
Q4 24
-2.5%
13.2%
Q3 24
-34.1%
-0.4%
Q2 24
-15.5%
-1.0%
Net Margin
IRTC
IRTC
RBBN
RBBN
Q1 26
54.8%
Q4 25
2.7%
Q3 25
-2.7%
-5.6%
Q2 25
-7.6%
-5.0%
Q1 25
-19.3%
-14.5%
Q4 24
-0.8%
Q3 24
-31.3%
-6.4%
Q2 24
-13.6%
-8.7%
EPS (diluted)
IRTC
IRTC
RBBN
RBBN
Q1 26
$0.50
Q4 25
$0.18
$0.50
Q3 25
$-0.16
$-0.07
Q2 25
$-0.44
$-0.06
Q1 25
$-0.97
$-0.15
Q4 24
$-0.03
$0.05
Q3 24
$-1.48
$-0.08
Q2 24
$-0.65
$-0.10

Balance Sheet & Financial Strength

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

Metric
IRTC
IRTC
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$583.8M
$67.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$152.7M
$419.1M
Total Assets
$1.0B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IRTC
IRTC
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$583.8M
$96.4M
Q3 25
$565.2M
$74.8M
Q2 25
$545.5M
$60.5M
Q1 25
$520.6M
$71.2M
Q4 24
$535.6M
$87.8M
Q3 24
$522.0M
$37.2M
Q2 24
$561.5M
$64.6M
Total Debt
IRTC
IRTC
RBBN
RBBN
Q1 26
Q4 25
$342.1M
Q3 25
$344.3M
Q2 25
$346.5M
Q1 25
$347.4M
Q4 24
$348.3M
Q3 24
$349.1M
Q2 24
$350.0M
Stockholders' Equity
IRTC
IRTC
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$152.7M
$449.0M
Q3 25
$121.9M
$360.1M
Q2 25
$103.7M
$370.4M
Q1 25
$86.7M
$381.8M
Q4 24
$90.9M
$404.6M
Q3 24
$71.8M
$395.5M
Q2 24
$99.2M
$405.0M
Total Assets
IRTC
IRTC
RBBN
RBBN
Q1 26
Q4 25
$1.0B
$1.2B
Q3 25
$995.2M
$1.1B
Q2 25
$964.0M
$1.1B
Q1 25
$926.1M
$1.1B
Q4 24
$931.4M
$1.2B
Q3 24
$909.7M
$1.1B
Q2 24
$919.2M
$1.1B
Debt / Equity
IRTC
IRTC
RBBN
RBBN
Q1 26
Q4 25
0.76×
Q3 25
0.96×
Q2 25
0.94×
Q1 25
0.91×
Q4 24
0.86×
Q3 24
0.88×
Q2 24
0.86×

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
RBBN
RBBN
Operating Cash FlowLast quarter
$26.2M
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
RBBN
RBBN
Q1 26
Q4 25
$26.2M
$29.2M
Q3 25
$34.9M
$26.5M
Q2 25
$27.7M
$-795.0K
Q1 25
$-7.9M
$-3.5M
Q4 24
$19.2M
$61.8M
Q3 24
$24.3M
$-14.8M
Q2 24
$11.8M
$-9.8M
Free Cash Flow
IRTC
IRTC
RBBN
RBBN
Q1 26
Q4 25
$14.5M
$27.3M
Q3 25
$20.1M
$21.0M
Q2 25
$17.3M
$-6.5M
Q1 25
$-17.3M
$-15.7M
Q4 24
$12.4M
$53.8M
Q3 24
$15.5M
$-23.7M
Q2 24
$3.4M
$-12.9M
FCF Margin
IRTC
IRTC
RBBN
RBBN
Q1 26
Q4 25
6.9%
12.0%
Q3 25
10.4%
9.7%
Q2 25
9.3%
-2.9%
Q1 25
-10.9%
-8.7%
Q4 24
7.5%
21.4%
Q3 24
10.5%
-11.3%
Q2 24
2.3%
-6.7%
Capex Intensity
IRTC
IRTC
RBBN
RBBN
Q1 26
Q4 25
5.6%
0.9%
Q3 25
7.7%
2.6%
Q2 25
5.6%
2.6%
Q1 25
5.9%
6.7%
Q4 24
4.2%
3.2%
Q3 24
6.0%
4.2%
Q2 24
5.7%
1.6%
Cash Conversion
IRTC
IRTC
RBBN
RBBN
Q1 26
Q4 25
4.70×
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24

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%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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