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Side-by-side financial comparison of AXCELIS TECHNOLOGIES INC (ACLS) and Iridium Communications Inc. (IRDM). Click either name above to swap in a different company.
AXCELIS TECHNOLOGIES INC is the larger business by last-quarter revenue ($238.3M vs $219.1M, roughly 1.1× Iridium Communications Inc.). AXCELIS TECHNOLOGIES INC runs the higher net margin — 14.4% vs 9.9%, a 4.5% gap on every dollar of revenue. On growth, Iridium Communications Inc. posted the faster year-over-year revenue change (1.9% vs -5.6%). Over the past eight quarters, Iridium Communications Inc.'s revenue compounded faster (4.4% CAGR vs -2.8%).
Axcelis Technologies, Inc. is an American company engaging in the design, manufacture, and servicing of capital equipment for the semiconductor manufacturing industry worldwide. It produces ion implantation systems, including high and medium current implanters, and high energy implanters, and curing systems used in the fabrication of semiconductor chips. The company was incorporated in 1995 and is headquartered in Beverly, Massachusetts, United States.
Iridium Communications Inc. is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium operates the Iridium satellite constellation, a system of 80 satellites: 66 are active satellites and the remaining fourteen function as in-orbit spares. Iridium Satellites are used for worldwide voice and data communication from handheld satellite phones, satellite messenger communication devices and integrated transceivers, as well as for two-way satellite messaging se...
ACLS vs IRDM — Head-to-Head
Income Statement — Q4 FY2025 vs Q1 FY2026
| Metric | | |
|---|---|---|
| Revenue | $238.3M | $219.1M |
| Net Profit | $34.3M | $21.6M |
| Gross Margin | 47.0% | — |
| Operating Margin | 15.2% | 23.2% |
| Net Margin | 14.4% | 9.9% |
| Revenue YoY | -5.6% | 1.9% |
| Net Profit YoY | -31.3% | — |
| EPS (diluted) | $1.11 | — |
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.
| Q1 26 | — | $219.1M | ||
| Q4 25 | $238.3M | $212.9M | ||
| Q3 25 | $213.6M | $226.9M | ||
| Q2 25 | $194.5M | $216.9M | ||
| Q1 25 | $192.6M | $214.9M | ||
| Q4 24 | $252.4M | $213.0M | ||
| Q3 24 | $256.6M | $212.8M | ||
| Q2 24 | $256.5M | $201.1M |
| Q1 26 | — | $21.6M | ||
| Q4 25 | $34.3M | $24.9M | ||
| Q3 25 | $26.0M | $37.1M | ||
| Q2 25 | $31.4M | $22.0M | ||
| Q1 25 | $28.6M | $30.4M | ||
| Q4 24 | $50.0M | $36.3M | ||
| Q3 24 | $48.6M | $24.4M | ||
| Q2 24 | $50.9M | $32.3M |
| Q1 26 | — | — | ||
| Q4 25 | 47.0% | — | ||
| Q3 25 | 41.6% | — | ||
| Q2 25 | 44.9% | — | ||
| Q1 25 | 46.1% | — | ||
| Q4 24 | 46.0% | — | ||
| Q3 24 | 42.9% | — | ||
| Q2 24 | 43.8% | — |
| Q1 26 | — | 23.2% | ||
| Q4 25 | 15.2% | 25.9% | ||
| Q3 25 | 11.7% | 30.9% | ||
| Q2 25 | 14.9% | 23.2% | ||
| Q1 25 | 15.1% | 28.1% | ||
| Q4 24 | 21.6% | 24.5% | ||
| Q3 24 | 18.3% | 25.8% | ||
| Q2 24 | 20.6% | 21.7% |
| Q1 26 | — | 9.9% | ||
| Q4 25 | 14.4% | 11.7% | ||
| Q3 25 | 12.2% | 16.4% | ||
| Q2 25 | 16.1% | 10.1% | ||
| Q1 25 | 14.8% | 14.2% | ||
| Q4 24 | 19.8% | 17.1% | ||
| Q3 24 | 18.9% | 11.5% | ||
| Q2 24 | 19.8% | 16.1% |
| Q1 26 | — | — | ||
| Q4 25 | $1.11 | $0.24 | ||
| Q3 25 | $0.83 | $0.35 | ||
| Q2 25 | $0.98 | $0.20 | ||
| Q1 25 | $0.88 | $0.27 | ||
| Q4 24 | $1.54 | $0.30 | ||
| Q3 24 | $1.49 | $0.21 | ||
| Q2 24 | $1.55 | $0.27 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $374.3M | — |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $1.0B | — |
| Total Assets | $1.4B | — |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $374.3M | $96.5M | ||
| Q3 25 | $449.6M | $88.5M | ||
| Q2 25 | $549.8M | $79.3M | ||
| Q1 25 | $587.1M | $50.9M | ||
| Q4 24 | $571.3M | $93.5M | ||
| Q3 24 | $579.4M | $159.6M | ||
| Q2 24 | $548.3M | $63.5M |
| Q1 26 | — | — | ||
| Q4 25 | — | $1.8B | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | $1.8B | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — |
| Q1 26 | — | — | ||
| Q4 25 | $1.0B | $462.6M | ||
| Q3 25 | $1.0B | $450.5M | ||
| Q2 25 | $1.0B | $473.6M | ||
| Q1 25 | $1.0B | $518.4M | ||
| Q4 24 | $1.0B | $576.6M | ||
| Q3 24 | $975.6M | $663.8M | ||
| Q2 24 | $934.9M | $786.7M |
| Q1 26 | — | — | ||
| Q4 25 | $1.4B | $2.5B | ||
| Q3 25 | $1.4B | $2.6B | ||
| Q2 25 | $1.3B | $2.6B | ||
| Q1 25 | $1.3B | $2.6B | ||
| Q4 24 | $1.3B | $2.7B | ||
| Q3 24 | $1.3B | $2.8B | ||
| Q2 24 | $1.3B | $2.7B |
| Q1 26 | — | — | ||
| Q4 25 | — | 3.80× | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | 3.05× | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — |
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 | $-6.6M | — |
| Free Cash FlowOCF − Capex | $-8.9M | — |
| FCF MarginFCF / Revenue | -3.7% | — |
| Capex IntensityCapex / Revenue | 1.0% | 13.7% |
| Cash ConversionOCF / Net Profit | -0.19× | — |
| TTM Free Cash FlowTrailing 4 quarters | $107.0M | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $-6.6M | $108.6M | ||
| Q3 25 | $45.4M | $100.8M | ||
| Q2 25 | $39.7M | $129.6M | ||
| Q1 25 | $39.8M | $61.1M | ||
| Q4 24 | $12.8M | $104.8M | ||
| Q3 24 | $45.7M | $118.6M | ||
| Q2 24 | $40.1M | $81.1M |
| Q1 26 | — | — | ||
| Q4 25 | $-8.9M | $75.1M | ||
| Q3 25 | $43.3M | $79.2M | ||
| Q2 25 | $37.7M | $108.9M | ||
| Q1 25 | $34.8M | $36.5M | ||
| Q4 24 | $8.1M | $80.5M | ||
| Q3 24 | $41.8M | $100.0M | ||
| Q2 24 | $38.1M | $68.7M |
| Q1 26 | — | — | ||
| Q4 25 | -3.7% | 35.3% | ||
| Q3 25 | 20.3% | 34.9% | ||
| Q2 25 | 19.4% | 50.2% | ||
| Q1 25 | 18.1% | 17.0% | ||
| Q4 24 | 3.2% | 37.8% | ||
| Q3 24 | 16.3% | 47.0% | ||
| Q2 24 | 14.8% | 34.2% |
| Q1 26 | — | 13.7% | ||
| Q4 25 | 1.0% | 15.7% | ||
| Q3 25 | 0.9% | 9.5% | ||
| Q2 25 | 1.0% | 9.5% | ||
| Q1 25 | 2.6% | 11.4% | ||
| Q4 24 | 1.8% | 11.4% | ||
| Q3 24 | 1.5% | 8.7% | ||
| Q2 24 | 0.8% | 6.2% |
| Q1 26 | — | — | ||
| Q4 25 | -0.19× | 4.37× | ||
| Q3 25 | 1.75× | 2.71× | ||
| Q2 25 | 1.27× | 5.90× | ||
| Q1 25 | 1.39× | 2.01× | ||
| Q4 24 | 0.26× | 2.88× | ||
| Q3 24 | 0.94× | 4.85× | ||
| Q2 24 | 0.79× | 2.51× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
ACLS
| Products | $224.6M | 94% |
| Services | $13.7M | 6% |
IRDM
| Voice and data | $57.4M | 26% |
| IoT data (2) | $46.0M | 21% |
| Government | $39.5M | 18% |
| Government service revenue (5) | $27.6M | 13% |
| Subscriber equipment | $20.2M | 9% |
| Hosted payload and other data service (4) | $14.8M | 7% |
| Broadband (3) | $12.2M | 6% |
| Commercial | $1.3M | 1% |
