Castle Biosciences, Inc. (CSTL) vs PROCEPT BioRobotics Corporation (PRCT)
A side-by-side comparison of Castle Biosciences, Inc. and PROCEPT BioRobotics Corporation 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.
CSTL
Castle Biosciences, Inc.
$33.36HealthcareDelayed quote: Oct 6, 2026, 4:00 PM EDT
PRCT
PROCEPT BioRobotics Corporation
$17.51HealthcareDelayed quote: Oct 6, 2026, 4:00 PM EDT
Total return — CSTL vs PRCT
growth of $100 · dividends reinvested · last 5yCSTL -51.0% (-13.3%/yr)PRCT -57.5% (-15.7%/yr)CSTL compounded faster over this window
CSTL PRCT
CSTL vs PRCT: by the numbers
- •CSTL is the larger company ($1.02B vs $997M market cap).
- •Both run net losses; CSTL's is the smaller (-5.43% vs -32.54% net margin).
- •PRCT grew revenue faster over the past five years (74.27% vs 35.55% CAGR).
Metrics side by side
Valuation
| Metric | CSTL | PRCT |
|---|---|---|
| P/S ratio | 2.85 | 2.95 |
| P/B ratio | 2.17 | 2.93 |
Profitability
| Metric | CSTL | PRCT |
|---|---|---|
| Gross margin | 77.26% | 63.74% |
| Operating margin | -8.99% | -33.86% |
| Net margin | -5.43% | -32.54% |
| ROE | -4.13% | -32.27% |
| ROIC | -6.33% | -27.51% |
Growth (annualized)
| Metric | CSTL | PRCT |
|---|---|---|
| Revenue CAGR (5Y) | 35.55% | 74.27% |
| Total return CAGR (5Y) | -10.28% | -14.36% |
Frequently asked
- Which has grown faster, CSTL or PRCT?
- Over the past five years, PRCT grew revenue faster — CSTL at a 35.55% CAGR versus PRCT at 74.27%.
- How have CSTL and PRCT total returns compared?
- Over the past 5 years, CSTL delivered -10.28% and PRCT delivered -14.36% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
Castle Biosciences ROEPROCEPT BioRobotics ROECastle Biosciences operating marginPROCEPT BioRobotics operating marginCastle Biosciences revenue growthPROCEPT BioRobotics revenue growthCastle Biosciences free cash flowPROCEPT BioRobotics free cash flow
Castle Biosciences & PROCEPT BioRobotics 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.