Stocks / ACHV vs CSTL

Achieve Life Sciences, Inc. (ACHV) vs Castle Biosciences, Inc. (CSTL)

Achieve Life Sciences, Inc. and Castle Biosciences, Inc. side by side — fundamentals from SEC filings, refreshed nightly. Sector: Healthcare.

CSTL is the larger company ($0.6B vs $0.6B). On the fundamentals, CSTL has the stronger return on equity (-5.1% vs -254.0%). Over the last five years, ACHV returned -32.0% vs -71.4%. On the filings, ACHV carries fewer potential red flags (1 vs 3). Full numbers below — the stronger figure on each row is in green.

AI verdict — ACHV vs CSTL, read from the filings

The stronger business, the cheaper stock, and the risks — synthesised from both companies’ SEC filings, every figure computed not guessed. Not investment advice.

 Achieve Life Sciences, Inc. (ACHV)Castle Biosciences, Inc. (CSTL)
Market cap$0.6B$0.6B
Revenue (latest FY)$0$344.23M
Net income (latest FY)$-54.65M$-24.16M
Revenue growth (5y CAGR)40.6%
Net margin-7.0%
Return on equity-254.0%-5.1%
P/E ratio
Dividend yield
Profitable years (of last 10)02
Positive free cash flowNoYes

Performance — ACHV vs CSTL

Total returns from monthly split- and dividend-adjusted closes; 52-week range from the latest quote. Past performance is not a prediction.

 Achieve Life Sciences, Inc. (ACHV)Castle Biosciences, Inc. (CSTL)
1-year return170.4%2.6%
3-year return17.7%52.7%
5-year return-32.0%-71.4%
10-year return-99.7%
52-week range$2.00–$6.16$14.59–$44.28

Verify the comparison

Use the filing period and source shown by each tool before treating two figures as comparable.

Compare with another company:

See the full ACHV vs CSTL breakdown

Both companies across 19 years of income statement, balance sheet and cash flow — with ratios, health checks and Ask, the SEC-grounded research assistant. Free, no account needed.

Open ACHV's full financials →   Open CSTL's full financials →

More comparisons

Frequently asked questions

Which is bigger, ACHV or CSTL?

Castle Biosciences, Inc. is larger by market capitalization — $0.6B versus $0.6B.

Which grows faster, ACHV or CSTL?

Five-year growth data is not available for both companies.

Where does this data come from?

All figures are computed from official SEC filings (10-K), refreshed nightly. This is a data comparison, not investment advice.

Keep exploring

ACHV fundamentals → · CSTL fundamentals → · All 1,500+ companies → · Free screener →