Castle Biosciences Inc (CSTL) returns
Castle Biosciences returns over 5 years
$1,000 invested in Castle Biosciences five years ago was worth $595.99 at the close on October 30, 2026, with dividends reinvested: an average return of -9.8% a year. The same $1,000 in the S&P 500 (SPY) became $1,760.
Total return by period
| Period | Total return | A year, on average | $1,000 became | S&P 500 (SPY) |
|---|---|---|---|---|
| 1 month | +4.6% | — | $1,046 | -0.9% |
| 3 months | +38.7% | — | $1,387 | +2.1% |
| Year to date | -4.5% | — | $955.27 | +11.7% |
| 1 year | +53.5% | — | $1,535 | +12.4% |
| 3 years | +161.1% | +37.7% | $2,611 | +88.5% |
| 5 years | -40.4% | -9.8% | $595.99 | +76.0% |
Castle Biosciences return by calendar year
| Year | CSTL | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | -4.5% | +11.7% | -16.2% |
| 2025 | +46.0% | +17.7% | +28.3% |
| 2024 | +23.5% | +24.9% | -1.4% |
| 2023 | -8.3% | +26.2% | -34.5% |
| 2022 | -45.1% | -18.2% | -26.9% |
| 2021 | -36.2% | +28.7% | -64.9% |
| 2020 | +95.4% | +18.4% | +77.0% |
Past returns do not predict future returns. Returns are computed from our daily closes, adjusted for splits and with dividends reinvested on their ex-dates; taxes and trading costs are left out.
See also: CSTL financials
No forecast, no recommendation. This page describes Castle Biosciences Inc from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.