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Side-by-side financial comparison of Iridium Communications Inc. (IRDM) and PTC THERAPEUTICS, INC. (PTCT). Click either name above to swap in a different company.
Iridium Communications Inc. is the larger business by last-quarter revenue ($219.1M vs $164.7M, roughly 1.3× PTC THERAPEUTICS, INC.). Iridium Communications Inc. runs the higher net margin — 9.9% vs -82.0%, a 91.8% gap on every dollar of revenue. On growth, Iridium Communications Inc. posted the faster year-over-year revenue change (1.9% vs -22.7%). Over the past eight quarters, Iridium Communications Inc.'s revenue compounded faster (4.4% CAGR vs -11.5%).
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...
PTC Therapeutics, Inc. is a US pharmaceutical company focused on the development of orally administered small molecule drugs and gene therapy which regulate gene expression by targeting post-transcriptional control (PTC) mechanisms in orphan diseases.
IRDM vs PTCT — Head-to-Head
Income Statement — Q1 FY2026 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $219.1M | $164.7M |
| Net Profit | $21.6M | $-135.0M |
| Gross Margin | — | — |
| Operating Margin | 23.2% | -43.3% |
| Net Margin | 9.9% | -82.0% |
| Revenue YoY | 1.9% | -22.7% |
| Net Profit YoY | — | -104.8% |
| EPS (diluted) | — | $-1.63 |
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 | $212.9M | $164.7M | ||
| Q3 25 | $226.9M | $211.0M | ||
| Q2 25 | $216.9M | $178.9M | ||
| Q1 25 | $214.9M | $1.2B | ||
| Q4 24 | $213.0M | $213.2M | ||
| Q3 24 | $212.8M | $196.8M | ||
| Q2 24 | $201.1M | $186.7M |
| Q1 26 | $21.6M | — | ||
| Q4 25 | $24.9M | $-135.0M | ||
| Q3 25 | $37.1M | $15.9M | ||
| Q2 25 | $22.0M | $-64.8M | ||
| Q1 25 | $30.4M | $866.6M | ||
| Q4 24 | $36.3M | $-65.9M | ||
| Q3 24 | $24.4M | $-106.7M | ||
| Q2 24 | $32.3M | $-99.2M |
| Q1 26 | 23.2% | — | ||
| Q4 25 | 25.9% | -43.3% | ||
| Q3 25 | 30.9% | 1.4% | ||
| Q2 25 | 23.2% | -19.5% | ||
| Q1 25 | 28.1% | 82.5% | ||
| Q4 24 | 24.5% | -76.2% | ||
| Q3 24 | 25.8% | -27.7% | ||
| Q2 24 | 21.7% | -21.5% |
| Q1 26 | 9.9% | — | ||
| Q4 25 | 11.7% | -82.0% | ||
| Q3 25 | 16.4% | 7.5% | ||
| Q2 25 | 10.1% | -36.3% | ||
| Q1 25 | 14.2% | 73.7% | ||
| Q4 24 | 17.1% | -30.9% | ||
| Q3 24 | 11.5% | -54.2% | ||
| Q2 24 | 16.1% | -53.1% |
| Q1 26 | — | — | ||
| Q4 25 | $0.24 | $-1.63 | ||
| Q3 25 | $0.35 | $0.20 | ||
| Q2 25 | $0.20 | $-0.83 | ||
| Q1 25 | $0.27 | $10.04 | ||
| Q4 24 | $0.30 | $-0.85 | ||
| Q3 24 | $0.21 | $-1.39 | ||
| Q2 24 | $0.27 | $-1.29 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | — | $1.9B |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | — | $-205.3M |
| Total Assets | — | $2.9B |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $96.5M | $1.9B | ||
| Q3 25 | $88.5M | $1.7B | ||
| Q2 25 | $79.3M | $2.0B | ||
| Q1 25 | $50.9M | $2.0B | ||
| Q4 24 | $93.5M | $1.1B | ||
| Q3 24 | $159.6M | $1.0B | ||
| Q2 24 | $63.5M | $1.1B |
| Q1 26 | — | — | ||
| Q4 25 | $1.8B | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | $1.8B | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — |
| Q1 26 | — | — | ||
| Q4 25 | $462.6M | $-205.3M | ||
| Q3 25 | $450.5M | $-155.8M | ||
| Q2 25 | $473.6M | $-206.5M | ||
| Q1 25 | $518.4M | $-185.8M | ||
| Q4 24 | $576.6M | $-1.1B | ||
| Q3 24 | $663.8M | $-1.1B | ||
| Q2 24 | $786.7M | $-980.2M |
| Q1 26 | — | — | ||
| Q4 25 | $2.5B | $2.9B | ||
| Q3 25 | $2.6B | $2.6B | ||
| Q2 25 | $2.6B | $2.6B | ||
| Q1 25 | $2.6B | $2.7B | ||
| Q4 24 | $2.7B | $1.7B | ||
| Q3 24 | $2.8B | $1.8B | ||
| Q2 24 | $2.7B | $1.9B |
| 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 | — | $-34.3M |
| Free Cash FlowOCF − Capex | — | $-36.6M |
| FCF MarginFCF / Revenue | — | -22.3% |
| Capex IntensityCapex / Revenue | 13.7% | 1.4% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | — | $702.3M |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $108.6M | $-34.3M | ||
| Q3 25 | $100.8M | $-66.3M | ||
| Q2 25 | $129.6M | $-58.3M | ||
| Q1 25 | $61.1M | $870.1M | ||
| Q4 24 | $104.8M | $-30.0M | ||
| Q3 24 | $118.6M | $-77.0M | ||
| Q2 24 | $81.1M | $-71.5M |
| Q1 26 | — | — | ||
| Q4 25 | $75.1M | $-36.6M | ||
| Q3 25 | $79.2M | $-69.7M | ||
| Q2 25 | $108.9M | $-59.6M | ||
| Q1 25 | $36.5M | $868.4M | ||
| Q4 24 | $80.5M | $-33.8M | ||
| Q3 24 | $100.0M | $-77.5M | ||
| Q2 24 | $68.7M | $-78.8M |
| Q1 26 | — | — | ||
| Q4 25 | 35.3% | -22.3% | ||
| Q3 25 | 34.9% | -33.1% | ||
| Q2 25 | 50.2% | -33.3% | ||
| Q1 25 | 17.0% | 73.8% | ||
| Q4 24 | 37.8% | -15.8% | ||
| Q3 24 | 47.0% | -39.4% | ||
| Q2 24 | 34.2% | -42.2% |
| Q1 26 | 13.7% | — | ||
| Q4 25 | 15.7% | 1.4% | ||
| Q3 25 | 9.5% | 1.6% | ||
| Q2 25 | 9.5% | 0.7% | ||
| Q1 25 | 11.4% | 0.1% | ||
| Q4 24 | 11.4% | 1.8% | ||
| Q3 24 | 8.7% | 0.3% | ||
| Q2 24 | 6.2% | 4.0% |
| Q1 26 | — | — | ||
| Q4 25 | 4.37× | — | ||
| Q3 25 | 2.71× | -4.17× | ||
| Q2 25 | 5.90× | — | ||
| Q1 25 | 2.01× | 1.00× | ||
| Q4 24 | 2.88× | — | ||
| Q3 24 | 4.85× | — | ||
| Q2 24 | 2.51× | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
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% |
PTCT
Segment breakdown not available.
