Bicara Therapeutics Inc. Common Stock (BCAX) vs Castle Biosciences, Inc. (CSTL)

A side-by-side comparison of Bicara Therapeutics Inc. Common Stock and Castle Biosciences, 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.

BCAX

Bicara Therapeutics Inc. Common Stock

$1.09B

$16.56HealthcareDelayed quote: Oct 6, 2026, 4:00 PM EDT

CSTL

Castle Biosciences, Inc.

$1.02B

$33.36HealthcareDelayed quote: Oct 6, 2026, 4:00 PM EDT

Total return — BCAX vs CSTL

growth of $100 · dividends reinvested · last 2y

BCAX -26.1% (-14.1%/yr)CSTL +19.5% (+9.3%/yr)CSTL compounded faster over this window

BCAX CSTL

BCAX vs CSTL: by the numbers

•BCAX is the larger company ($1.09B vs $1.02B market cap).
•Both run net losses; BCAX's is the smaller (0.00% vs -5.43% net margin).

Metrics side by side

Valuation

Metric	BCAX	CSTL
P/S ratio	N/A	2.85
P/B ratio	2.32	2.17

Profitability

Metric	BCAX	CSTL
Gross margin	0.00%	77.26%
Operating margin	0.00%	-8.99%
Net margin	0.00%	-5.43%
ROE	-39.54%	-4.13%
ROIC	-42.98%	-6.33%

Growth (annualized)

Metric	BCAX	CSTL
Revenue CAGR (5Y)	N/A	35.55%
Total return CAGR (5Y)	N/A	-10.28%

Go deeper

Full BCAX analysis Full CSTL analysis Interactive comparison tool

Dig into the metrics

Bicara Therapeutics Inc. Common Stock ROE Castle Biosciences ROE Bicara Therapeutics Inc. Common Stock operating margin Castle Biosciences operating margin Bicara Therapeutics Inc. Common Stock revenue growth Castle Biosciences revenue growth Bicara Therapeutics Inc. Common Stock free cash flow Castle Biosciences free cash flow

Bicara Therapeutics Inc. Common Stock & Castle Biosciences appear in these rankings

Fastest Revenue Growth Stocks

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.