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$33.15+3.06%
as of close, Oct 20, 2026
☾ AH $33.15 +3.06%
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Castle Biosciences Inc. trailing returns

How Castle Biosciences Inc. (CSTL) has performed over the last day, week, month and year, over 5 years, and since inception, through October 20, 2026 — price return and dividends side by side, with the worst drop inside each window.

Trailing returns by period#

To 2026-10-20. Price return + dividends = total return. Per year (CAGR) for windows of a year or more, with the cumulative total return beneath. Worst drop: the deepest fall in the price from a high inside the window, and when it bottomed.

PeriodPriceDivsTotalWorst drop
1 day+3.1%+0.0%+3.1%—
5 days+0.8%+0.0%+0.8%-5.4%Oct 16
1 month-6.2%+0.0%-6.2%-12.8%Oct 16
YTD-14.8%+0.0%-14.8%-57.8%May 13
1 year+44.1%+0.0%+44.1%-57.8%May 2026
5 years-12.6%+0.0%-12.6%-49.0%-82.1%Jun 2023
Since inception (2019)+6.2%+0.0%+6.2%+54.9%-88.0%Jun 2023

Growth of CSTL#

Actual level with dividends reinvested (solid); dashed lines are each window's constant-rate path from start to today.

  • 5 years-12.6%/year · -49.0%

Methodology#

Trailing returns measure from the closest close about N years before the latest close (2026-10-20). Cumulative return is the total change over the window; annualized return is the compound annual growth rate (CAGR), shown for windows of a year or more. Price return is the change in CSTL's closing price; total return reinvests dividends (from its split- and dividend-adjusted closes); the dividends column is the difference between the two. The worst drop is the largest fall in the closing price from a high to a later low inside the window, the way a drawdown is usually quoted. See the year-by-year returns for the calendar breakdown. Past performance does not predict future returns; not investment advice.

FAQ#

What is Castle Biosciences Inc.'s return since inception?
Since 2019, Castle Biosciences Inc. (CSTL) has compounded at about +6.2% a year — +54.9% in total.

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