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Side-by-side financial comparison of FREQUENCY ELECTRONICS INC (FEIM) and Pulmonx Corp (LUNG). Click either name above to swap in a different company.
Pulmonx Corp is the larger business by last-quarter revenue ($20.6M vs $17.1M, roughly 1.2× FREQUENCY ELECTRONICS INC). FREQUENCY ELECTRONICS INC runs the higher net margin — 10.5% vs -66.3%, a 76.8% gap on every dollar of revenue. On growth, FREQUENCY ELECTRONICS INC posted the faster year-over-year revenue change (8.3% vs -8.7%). Over the past eight quarters, FREQUENCY ELECTRONICS INC's revenue compounded faster (11.8% CAGR vs -0.5%).
Ultra Electronics Holdings is a British defence and security company. It was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index until it was acquired by Cobham, which is itself owned by Advent International.
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.
FEIM vs LUNG — Head-to-Head
Income Statement — Q2 FY2026 vs Q1 FY2026
| Metric | | |
|---|---|---|
| Revenue | $17.1M | $20.6M |
| Net Profit | $1.8M | $-13.7M |
| Gross Margin | 38.2% | 77.9% |
| Operating Margin | 10.0% | -40.9% |
| Net Margin | 10.5% | -66.3% |
| Revenue YoY | 8.3% | -8.7% |
| Net Profit YoY | -32.1% | 5.5% |
| EPS (diluted) | $0.18 | $-0.33 |
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 | $17.1M | $22.6M | ||
| Q3 25 | $13.8M | $21.5M | ||
| Q2 25 | $20.0M | $23.9M | ||
| Q1 25 | $18.9M | $22.5M | ||
| Q4 24 | $15.8M | $23.8M | ||
| Q3 24 | $15.1M | $20.4M | ||
| Q2 24 | $15.6M | $20.8M |
| Q1 26 | — | $-13.7M | ||
| Q4 25 | $1.8M | $-10.4M | ||
| Q3 25 | $634.0K | $-14.0M | ||
| Q2 25 | $3.2M | $-15.2M | ||
| Q1 25 | $15.4M | $-14.4M | ||
| Q4 24 | $2.7M | $-13.2M | ||
| Q3 24 | $2.4M | $-14.1M | ||
| Q2 24 | $2.6M | $-15.3M |
| Q1 26 | — | 77.9% | ||
| Q4 25 | 38.2% | 77.6% | ||
| Q3 25 | 36.8% | 74.7% | ||
| Q2 25 | 37.5% | 72.1% | ||
| Q1 25 | 43.8% | 72.5% | ||
| Q4 24 | 48.2% | 74.0% | ||
| Q3 24 | 44.4% | 73.7% | ||
| Q2 24 | 40.3% | 73.7% |
| Q1 26 | — | -40.9% | ||
| Q4 25 | 10.0% | -43.8% | ||
| Q3 25 | 2.6% | -66.9% | ||
| Q2 25 | 16.4% | -62.0% | ||
| Q1 25 | 18.3% | -64.6% | ||
| Q4 24 | 16.5% | -56.5% | ||
| Q3 24 | 15.7% | -69.3% | ||
| Q2 24 | 16.0% | -75.2% |
| Q1 26 | — | -66.3% | ||
| Q4 25 | 10.5% | -46.1% | ||
| Q3 25 | 4.6% | -64.9% | ||
| Q2 25 | 16.0% | -63.6% | ||
| Q1 25 | 81.4% | -64.1% | ||
| Q4 24 | 16.8% | -55.4% | ||
| Q3 24 | 16.1% | -69.4% | ||
| Q2 24 | 16.9% | -73.7% |
| Q1 26 | — | $-0.33 | ||
| Q4 25 | $0.18 | $-0.25 | ||
| Q3 25 | $0.07 | $-0.34 | ||
| Q2 25 | $0.33 | $-0.38 | ||
| Q1 25 | $1.60 | $-0.36 | ||
| Q4 24 | $0.28 | $-0.33 | ||
| Q3 24 | $0.25 | $-0.36 | ||
| Q2 24 | $0.28 | $-0.39 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $3.0M | $61.6M |
| Total DebtLower is stronger | — | $37.3M |
| Stockholders' EquityBook value | $58.5M | $45.8M |
| Total Assets | $92.3M | $120.0M |
| Debt / EquityLower = less leverage | — | 0.82× |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | $61.6M | ||
| Q4 25 | $3.0M | $69.8M | ||
| Q3 25 | $4.5M | $76.5M | ||
| Q2 25 | $4.7M | $75.5M | ||
| Q1 25 | $5.5M | $74.6M | ||
| Q4 24 | $9.7M | $70.9M | ||
| Q3 24 | $16.2M | $63.3M | ||
| Q2 24 | $18.3M | $63.5M |
| 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 | $58.5M | $54.1M | ||
| Q3 25 | $56.3M | $60.0M | ||
| Q2 25 | $55.6M | $69.1M | ||
| Q1 25 | $51.8M | $77.7M | ||
| Q4 24 | $36.2M | $85.8M | ||
| Q3 24 | $33.2M | $93.9M | ||
| Q2 24 | $39.8M | $101.2M |
| Q1 26 | — | $120.0M | ||
| Q4 25 | $92.3M | $129.3M | ||
| Q3 25 | $93.2M | $138.3M | ||
| Q2 25 | $93.7M | $147.2M | ||
| Q1 25 | $86.4M | $150.7M | ||
| Q4 24 | $77.8M | $162.8M | ||
| Q3 24 | $84.3M | $167.4M | ||
| Q2 24 | $83.3M | $172.6M |
| 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 | $-523.0K | — |
| Free Cash FlowOCF − Capex | $-1.1M | — |
| FCF MarginFCF / Revenue | -6.6% | — |
| Capex IntensityCapex / Revenue | 3.6% | — |
| Cash ConversionOCF / Net Profit | -0.29× | — |
| TTM Free Cash FlowTrailing 4 quarters | $-5.5M | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $-523.0K | $-7.1M | ||
| Q3 25 | $1.2M | $-8.2M | ||
| Q2 25 | $-155.0K | $-3.9M | ||
| Q1 25 | $-3.6M | $-13.2M | ||
| Q4 24 | $3.8M | $-6.7M | ||
| Q3 24 | $-1.5M | $-7.2M | ||
| Q2 24 | $7.5M | $-5.8M |
| Q1 26 | — | — | ||
| Q4 25 | $-1.1M | $-7.1M | ||
| Q3 25 | $385.0K | $-8.3M | ||
| Q2 25 | $-786.0K | $-4.0M | ||
| Q1 25 | $-4.0M | $-13.5M | ||
| Q4 24 | $3.3M | $-6.8M | ||
| Q3 24 | $-1.8M | $-7.7M | ||
| Q2 24 | $6.7M | $-6.2M |
| Q1 26 | — | — | ||
| Q4 25 | -6.6% | -31.4% | ||
| Q3 25 | 2.8% | -38.4% | ||
| Q2 25 | -3.9% | -16.6% | ||
| Q1 25 | -20.9% | -60.0% | ||
| Q4 24 | 20.8% | -28.8% | ||
| Q3 24 | -11.8% | -37.6% | ||
| Q2 24 | 42.8% | -30.0% |
| Q1 26 | — | — | ||
| Q4 25 | 3.6% | 0.1% | ||
| Q3 25 | 5.6% | 0.4% | ||
| Q2 25 | 3.2% | 0.2% | ||
| Q1 25 | 1.7% | 1.3% | ||
| Q4 24 | 3.3% | 0.5% | ||
| Q3 24 | 2.2% | 2.0% | ||
| Q2 24 | 5.3% | 2.3% |
| Q1 26 | — | — | ||
| Q4 25 | -0.29× | — | ||
| Q3 25 | 1.83× | — | ||
| Q2 25 | -0.05× | — | ||
| Q1 25 | -0.24× | — | ||
| Q4 24 | 1.44× | — | ||
| Q3 24 | -0.60× | — | ||
| Q2 24 | 2.85× | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
FEIM
| POC Revenue | $14.8M | 86% |
| POT Revenue | $2.3M | 13% |
LUNG
Segment breakdown not available.
