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Side-by-side financial comparison of ACM Research, Inc. (ACMR) and iRhythm Holdings, Inc. (IRTC). Click either name above to swap in a different company.
ACM Research, Inc. is the larger business by last-quarter revenue ($244.4M vs $208.9M, roughly 1.2× iRhythm Holdings, Inc.). ACM Research, Inc. runs the higher net margin — 3.3% vs 2.7%, a 0.6% gap on every dollar of revenue. On growth, iRhythm Holdings, Inc. posted the faster year-over-year revenue change (27.1% vs 9.4%). ACM Research, Inc. produced more free cash flow last quarter ($20.1M vs $14.5M). Over the past eight quarters, ACM Research, Inc.'s revenue compounded faster (26.7% CAGR vs 25.8%).
ACM Research, Inc. is a leading global supplier of advanced processing equipment for the semiconductor manufacturing industry. It designs, develops and commercializes high-performance wet processing systems including wafer cleaning, electroplating and etching tools, which support production of advanced logic, memory and power semiconductor chips, serving chip manufacturers across Asia, North America and Europe.
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.
ACMR vs IRTC — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $244.4M | $208.9M |
| Net Profit | $8.0M | $5.6M |
| Gross Margin | 40.9% | 70.9% |
| Operating Margin | 9.4% | 1.1% |
| Net Margin | 3.3% | 2.7% |
| Revenue YoY | 9.4% | 27.1% |
| Net Profit YoY | -74.1% | 518.5% |
| EPS (diluted) | $0.11 | $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.
| Q4 25 | $244.4M | $208.9M | ||
| Q3 25 | $269.2M | $192.9M | ||
| Q2 25 | $215.4M | $186.7M | ||
| Q1 25 | $172.3M | $158.7M | ||
| Q4 24 | $223.5M | $164.3M | ||
| Q3 24 | $204.0M | $147.5M | ||
| Q2 24 | $202.5M | $148.0M | ||
| Q1 24 | $152.2M | $131.9M |
| Q4 25 | $8.0M | $5.6M | ||
| Q3 25 | $35.9M | $-5.2M | ||
| Q2 25 | $29.8M | $-14.2M | ||
| Q1 25 | $20.4M | $-30.7M | ||
| Q4 24 | $31.1M | $-1.3M | ||
| Q3 24 | $30.9M | $-46.2M | ||
| Q2 24 | $24.2M | $-20.1M | ||
| Q1 24 | $17.4M | $-45.7M |
| Q4 25 | 40.9% | 70.9% | ||
| Q3 25 | 42.0% | 71.1% | ||
| Q2 25 | 48.5% | 71.2% | ||
| Q1 25 | 47.9% | 68.8% | ||
| Q4 24 | 49.6% | 70.0% | ||
| Q3 24 | 51.4% | 68.8% | ||
| Q2 24 | 47.8% | 69.9% | ||
| Q1 24 | 52.0% | 66.3% |
| Q4 25 | 9.4% | 1.1% | ||
| Q3 25 | 10.7% | -4.4% | ||
| Q2 25 | 14.7% | -10.0% | ||
| Q1 25 | 15.0% | -20.5% | ||
| Q4 24 | 19.7% | -2.5% | ||
| Q3 24 | 21.7% | -34.1% | ||
| Q2 24 | 18.6% | -15.5% | ||
| Q1 24 | 16.6% | -28.9% |
| Q4 25 | 3.3% | 2.7% | ||
| Q3 25 | 13.3% | -2.7% | ||
| Q2 25 | 13.8% | -7.6% | ||
| Q1 25 | 11.8% | -19.3% | ||
| Q4 24 | 13.9% | -0.8% | ||
| Q3 24 | 15.2% | -31.3% | ||
| Q2 24 | 12.0% | -13.6% | ||
| Q1 24 | 11.5% | -34.6% |
| Q4 25 | $0.11 | $0.18 | ||
| Q3 25 | $0.52 | $-0.16 | ||
| Q2 25 | $0.44 | $-0.44 | ||
| Q1 25 | $0.30 | $-0.97 | ||
| Q4 24 | $0.47 | $-0.03 | ||
| Q3 24 | $0.45 | $-1.48 | ||
| Q2 24 | $0.35 | $-0.65 | ||
| Q1 24 | $0.26 | $-1.47 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $792.9M | $583.8M |
| Total DebtLower is stronger | $214.0M | — |
| Stockholders' EquityBook value | $1.5B | $152.7M |
| Total Assets | $2.9B | $1.0B |
| Debt / EquityLower = less leverage | 0.15× | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $792.9M | $583.8M | ||
| Q3 25 | $1.1B | $565.2M | ||
| Q2 25 | $463.2M | $545.5M | ||
| Q1 25 | $475.6M | $520.6M | ||
| Q4 24 | $426.8M | $535.6M | ||
| Q3 24 | $353.8M | $522.0M | ||
| Q2 24 | $343.6M | $561.5M | ||
| Q1 24 | $230.0M | $569.1M |
| Q4 25 | $214.0M | — | ||
| Q3 25 | $242.0M | — | ||
| Q2 25 | $225.1M | — | ||
| Q1 25 | $202.5M | — | ||
| Q4 24 | $150.0M | — | ||
| Q3 24 | $150.0M | — | ||
| Q2 24 | $90.5M | — | ||
| Q1 24 | $60.0M | — |
| Q4 25 | $1.5B | $152.7M | ||
| Q3 25 | $1.4B | $121.9M | ||
| Q2 25 | $986.5M | $103.7M | ||
| Q1 25 | $949.1M | $86.7M | ||
| Q4 24 | $904.6M | $90.9M | ||
| Q3 24 | $888.2M | $71.8M | ||
| Q2 24 | $833.2M | $99.2M | ||
| Q1 24 | $796.2M | $90.3M |
| Q4 25 | $2.9B | $1.0B | ||
| Q3 25 | $2.8B | $995.2M | ||
| Q2 25 | $2.0B | $964.0M | ||
| Q1 25 | $1.9B | $926.1M | ||
| Q4 24 | $1.9B | $931.4M | ||
| Q3 24 | $1.8B | $909.7M | ||
| Q2 24 | $1.7B | $919.2M | ||
| Q1 24 | $1.6B | $909.8M |
| Q4 25 | 0.15× | — | ||
| Q3 25 | 0.17× | — | ||
| Q2 25 | 0.23× | — | ||
| Q1 25 | 0.21× | — | ||
| Q4 24 | 0.17× | — | ||
| Q3 24 | 0.17× | — | ||
| Q2 24 | 0.11× | — | ||
| Q1 24 | 0.08× | — |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $33.9M | $26.2M |
| Free Cash FlowOCF − Capex | $20.1M | $14.5M |
| FCF MarginFCF / Revenue | 8.2% | 6.9% |
| Capex IntensityCapex / Revenue | 5.6% | 5.6% |
| Cash ConversionOCF / Net Profit | 4.21× | 4.70× |
| TTM Free Cash FlowTrailing 4 quarters | $-66.6M | $34.5M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $33.9M | $26.2M | ||
| Q3 25 | $-4.6M | $34.9M | ||
| Q2 25 | $-44.9M | $27.7M | ||
| Q1 25 | $5.3M | $-7.9M | ||
| Q4 24 | $88.6M | $19.2M | ||
| Q3 24 | $11.9M | $24.3M | ||
| Q2 24 | $61.6M | $11.8M | ||
| Q1 24 | $-9.6M | $-52.0M |
| Q4 25 | $20.1M | $14.5M | ||
| Q3 25 | $-15.6M | $20.1M | ||
| Q2 25 | $-59.6M | $17.3M | ||
| Q1 25 | $-11.4M | $-17.3M | ||
| Q4 24 | $77.2M | $12.4M | ||
| Q3 24 | $-20.6M | $15.5M | ||
| Q2 24 | $48.5M | $3.4M | ||
| Q1 24 | $-35.1M | $-61.8M |
| Q4 25 | 8.2% | 6.9% | ||
| Q3 25 | -5.8% | 10.4% | ||
| Q2 25 | -27.7% | 9.3% | ||
| Q1 25 | -6.6% | -10.9% | ||
| Q4 24 | 34.5% | 7.5% | ||
| Q3 24 | -10.1% | 10.5% | ||
| Q2 24 | 24.0% | 2.3% | ||
| Q1 24 | -23.0% | -46.8% |
| Q4 25 | 5.6% | 5.6% | ||
| Q3 25 | 4.1% | 7.7% | ||
| Q2 25 | 6.8% | 5.6% | ||
| Q1 25 | 9.7% | 5.9% | ||
| Q4 24 | 5.1% | 4.2% | ||
| Q3 24 | 16.0% | 6.0% | ||
| Q2 24 | 6.5% | 5.7% | ||
| Q1 24 | 16.7% | 7.4% |
| Q4 25 | 4.21× | 4.70× | ||
| Q3 25 | -0.13× | — | ||
| Q2 25 | -1.51× | — | ||
| Q1 25 | 0.26× | — | ||
| Q4 24 | 2.85× | — | ||
| Q3 24 | 0.39× | — | ||
| Q2 24 | 2.54× | — | ||
| Q1 24 | -0.55× | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
ACMR
| Total Single Wafer And Semi Critical Cleaning Equipment | $159.9M | 65% |
| ECP Front End And Packaging Furnace And Other Technologies | $64.1M | 26% |
| Advanced Packaging Exclude ECP Services Spares | $20.5M | 8% |
IRTC
| Commercial Payors | $111.7M | 53% |
| Centers For Medicare And Medicaid | $49.2M | 24% |
| Healthcare Institutions | $34.3M | 16% |
| Non Contracted Third Party Payors | $13.7M | 7% |
