Nasdaq
CSTL
Castle Biosciences, Inc.
- Health Care
- Listed 2019
- 1 day
- +0.2%
- 1 month
- +27.9%
- 1 year
- +54.2%
$30.47 · Mkt cap $931M
At the 6 Aug 2026 close
Nasdaq
Castle Biosciences, Inc.
$30.47 · Mkt cap $931M
At the 6 Aug 2026 close
Castle Biosciences, Inc. trades under the ticker CSTL on Nasdaq, in the Health Care sector (Medical Specialities). It has been listed since 2019. Its market capitalisation is $931M. The last closing price was $30.47, on 6 Aug 2026. No price-to-earnings ratio is shown, because it did not report positive earnings in its last annual filing. Over the past year the share price is +54.2%, and +27.9% over the past month. Returns are price returns and exclude dividends.
This page exists because CSTL is one of the shares What A Share can show you. It is not a recommendation, and its appearance here says nothing about whether the company is worth owning.