Pulmonx Corporation (LUNG) vs Sera Prognostics, Inc. (SERA)
A side-by-side comparison of Pulmonx Corporation and Sera Prognostics, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.
LUNG
Pulmonx Corporation
$1.80HealthcareDelayed quote: Oct 6, 2026, 2:45 PM EDT
SERA
Sera Prognostics, Inc.
$2.02HealthcareDelayed quote: Oct 6, 2026, 2:29 PM EDT
Total return — LUNG vs SERA
growth of $100 · dividends reinvested · last 5yLUNG -95.2% (-45.6%/yr)SERA -83.2% (-30.0%/yr)SERA compounded faster over this window
LUNG SERA
LUNG vs SERA: by the numbers
- •SERA is the larger company ($77M vs $76M market cap).
- •Both run net losses; LUNG's is the smaller (-55.03% vs -47475.71% net margin).
- •LUNG grew revenue faster over the past five years (15.86% vs 9.73% CAGR).
Metrics side by side
Valuation
| Metric | LUNG | SERA |
|---|---|---|
| P/S ratio | 0.87 | 1102.08 |
| P/B ratio | 1.93 | 1.30 |
Profitability
| Metric | LUNG | SERA |
|---|---|---|
| Gross margin | 77.06% | -102.47% |
| Operating margin | -52.96% | -45066.67% |
| Net margin | -55.03% | -47475.71% |
| ROE | -122.76% | -55.97% |
| ROIC | -48.39% | -59.79% |
Growth (annualized)
| Metric | LUNG | SERA |
|---|---|---|
| Revenue CAGR (5Y) | 15.86% | 9.73% |
| Total return CAGR (5Y) | -45.30% | -28.91% |
Frequently asked
- Which has grown faster, LUNG or SERA?
- Over the past five years, LUNG grew revenue faster — LUNG at a 15.86% CAGR versus SERA at 9.73%.
- How have LUNG and SERA total returns compared?
- Over the past 5 years, LUNG delivered -45.30% and SERA delivered -28.91% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
Pulmonx ROESera Prognostics ROEPulmonx operating marginSera Prognostics operating marginPulmonx revenue growthSera Prognostics revenue growthPulmonx free cash flowSera Prognostics free cash flow
Pulmonx & Sera Prognostics appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.