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Side-by-side financial comparison of Pulmonx Corp (LUNG) and Rumble Inc. (RUM). Click either name above to swap in a different company.
Rumble Inc. is the larger business by last-quarter revenue ($27.1M vs $20.6M, roughly 1.3× Pulmonx Corp). Pulmonx Corp runs the higher net margin — -66.3% vs -120.8%, a 54.5% gap on every dollar of revenue. On growth, Pulmonx Corp posted the faster year-over-year revenue change (-8.7% vs -10.5%). Over the past eight quarters, Rumble Inc.'s revenue compounded faster (15.2% CAGR vs -0.5%).
Pulmonx Corp is a global medical tech firm focused on interventional pulmonology solutions. It develops minimally invasive endobronchial valves to treat severe COPD and emphysema, with products sold across North America, Europe, and Asia-Pacific for patients with advanced lung conditions.
Rumble is a Canadian-American online video platform, web hosting, and cloud services business headquartered in Toronto, Canada, with its U.S. headquarters in Longboat Key, Florida. It was founded in 2013 by Chris Pavlovski, a Canadian technology entrepreneur. Rumble's cloud services business hosts Truth Social, and the video platform is popular among American conservative and far-right users. Rumble has been described as "alt-tech".
LUNG vs RUM — Head-to-Head
Income Statement — Q1 FY2026 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $20.6M | $27.1M |
| Net Profit | $-13.7M | $-32.7M |
| Gross Margin | 77.9% | 5.5% |
| Operating Margin | -40.9% | -131.1% |
| Net Margin | -66.3% | -120.8% |
| Revenue YoY | -8.7% | -10.5% |
| Net Profit YoY | 5.5% | 86.2% |
| EPS (diluted) | $-0.33 | $-0.13 |
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 | $20.6M | — | ||
| Q4 25 | $22.6M | $27.1M | ||
| Q3 25 | $21.5M | $24.8M | ||
| Q2 25 | $23.9M | — | ||
| Q1 25 | $22.5M | $23.7M | ||
| Q4 24 | $23.8M | $30.2M | ||
| Q3 24 | $20.4M | $25.1M | ||
| Q2 24 | $20.8M | $22.5M |
| Q1 26 | $-13.7M | — | ||
| Q4 25 | $-10.4M | $-32.7M | ||
| Q3 25 | $-14.0M | $-16.3M | ||
| Q2 25 | $-15.2M | — | ||
| Q1 25 | $-14.4M | $-2.7M | ||
| Q4 24 | $-13.2M | $-236.8M | ||
| Q3 24 | $-14.1M | $-31.5M | ||
| Q2 24 | $-15.3M | $-26.8M |
| Q1 26 | 77.9% | — | ||
| Q4 25 | 77.6% | 5.5% | ||
| Q3 25 | 74.7% | -1.8% | ||
| Q2 25 | 72.1% | — | ||
| Q1 25 | 72.5% | -26.7% | ||
| Q4 24 | 74.0% | -14.2% | ||
| Q3 24 | 73.7% | -45.4% | ||
| Q2 24 | 73.7% | -58.8% |
| Q1 26 | -40.9% | — | ||
| Q4 25 | -43.8% | -131.1% | ||
| Q3 25 | -66.9% | -113.6% | ||
| Q2 25 | -62.0% | — | ||
| Q1 25 | -64.6% | -153.5% | ||
| Q4 24 | -56.5% | -80.1% | ||
| Q3 24 | -69.3% | -131.0% | ||
| Q2 24 | -75.2% | -172.7% |
| Q1 26 | -66.3% | — | ||
| Q4 25 | -46.1% | -120.8% | ||
| Q3 25 | -64.9% | -65.7% | ||
| Q2 25 | -63.6% | — | ||
| Q1 25 | -64.1% | -11.2% | ||
| Q4 24 | -55.4% | -783.2% | ||
| Q3 24 | -69.4% | -125.9% | ||
| Q2 24 | -73.7% | -119.2% |
| Q1 26 | $-0.33 | — | ||
| Q4 25 | $-0.25 | $-0.13 | ||
| Q3 25 | $-0.34 | $-0.06 | ||
| Q2 25 | $-0.38 | — | ||
| Q1 25 | $-0.36 | $-0.01 | ||
| Q4 24 | $-0.33 | $-1.17 | ||
| Q3 24 | $-0.36 | $-0.15 | ||
| Q2 24 | $-0.39 | $-0.13 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $61.6M | $237.9M |
| Total DebtLower is stronger | $37.3M | — |
| Stockholders' EquityBook value | $45.8M | $274.8M |
| Total Assets | $120.0M | $336.8M |
| Debt / EquityLower = less leverage | 0.82× | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | $61.6M | — | ||
| Q4 25 | $69.8M | $237.9M | ||
| Q3 25 | $76.5M | $269.8M | ||
| Q2 25 | $75.5M | — | ||
| Q1 25 | $74.6M | $301.3M | ||
| Q4 24 | $70.9M | $114.0M | ||
| Q3 24 | $63.3M | $132.0M | ||
| Q2 24 | $63.5M | $154.2M |
| Q1 26 | $37.3M | — | ||
| Q4 25 | $37.1M | — | ||
| Q3 25 | $37.1M | — | ||
| Q2 25 | $37.1M | — | ||
| Q1 25 | $37.2M | — | ||
| Q4 24 | $37.2M | — | ||
| Q3 24 | $37.2M | — | ||
| Q2 24 | $37.2M | — |
| Q1 26 | $45.8M | — | ||
| Q4 25 | $54.1M | $274.8M | ||
| Q3 25 | $60.0M | $302.2M | ||
| Q2 25 | $69.1M | — | ||
| Q1 25 | $77.7M | $339.6M | ||
| Q4 24 | $85.8M | $-63.1M | ||
| Q3 24 | $93.9M | $166.1M | ||
| Q2 24 | $101.2M | $192.7M |
| Q1 26 | $120.0M | — | ||
| Q4 25 | $129.3M | $336.8M | ||
| Q3 25 | $138.3M | $367.2M | ||
| Q2 25 | $147.2M | — | ||
| Q1 25 | $150.7M | $391.1M | ||
| Q4 24 | $162.8M | $195.3M | ||
| Q3 24 | $167.4M | $217.2M | ||
| Q2 24 | $172.6M | $243.2M |
| Q1 26 | 0.82× | — | ||
| Q4 25 | 0.69× | — | ||
| Q3 25 | 0.62× | — | ||
| Q2 25 | 0.54× | — | ||
| Q1 25 | 0.48× | — | ||
| Q4 24 | 0.43× | — | ||
| Q3 24 | 0.40× | — | ||
| Q2 24 | 0.37× | — |
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 | — | $-29.4M |
| Free Cash FlowOCF − Capex | — | $-31.7M |
| FCF MarginFCF / Revenue | — | -117.2% |
| Capex IntensityCapex / Revenue | — | 8.5% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | — | $-70.8M |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $-7.1M | $-29.4M | ||
| Q3 25 | $-8.2M | $-10.6M | ||
| Q2 25 | $-3.9M | — | ||
| Q1 25 | $-13.2M | $-14.5M | ||
| Q4 24 | $-6.7M | $-12.4M | ||
| Q3 24 | $-7.2M | $-19.1M | ||
| Q2 24 | $-5.8M | $-21.7M |
| Q1 26 | — | — | ||
| Q4 25 | $-7.1M | $-31.7M | ||
| Q3 25 | $-8.3M | $-12.0M | ||
| Q2 25 | $-4.0M | — | ||
| Q1 25 | $-13.5M | $-14.6M | ||
| Q4 24 | $-6.8M | $-12.4M | ||
| Q3 24 | $-7.7M | $-19.9M | ||
| Q2 24 | $-6.2M | $-23.1M |
| Q1 26 | — | — | ||
| Q4 25 | -31.4% | -117.2% | ||
| Q3 25 | -38.4% | -48.6% | ||
| Q2 25 | -16.6% | — | ||
| Q1 25 | -60.0% | -61.7% | ||
| Q4 24 | -28.8% | -40.9% | ||
| Q3 24 | -37.6% | -79.5% | ||
| Q2 24 | -30.0% | -102.8% |
| Q1 26 | — | — | ||
| Q4 25 | 0.1% | 8.5% | ||
| Q3 25 | 0.4% | 5.7% | ||
| Q2 25 | 0.2% | — | ||
| Q1 25 | 1.3% | 0.6% | ||
| Q4 24 | 0.5% | 0.1% | ||
| Q3 24 | 2.0% | 3.4% | ||
| Q2 24 | 2.3% | 6.1% |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
LUNG
Segment breakdown not available.
RUM
| Audience Monetization | $23.8M | 88% |
| Other Initiatives | $3.3M | 12% |
