Both in Medical Labs

Castle Biosciences vs CareDx

Over the past year CSTL returned +43.0% and CDNA returned +491.8%; their daily moves had a correlation of 0.33.

CSTL +43.0% CDNA +491.8%Growth of $1, one year, split-adjusted
MetricCSTLCDNA
Price$37.16$87.41
Market cap$1.14B$4.59B
Today−3.51%+22.22%
1 month+5.4%+32.0%
6 months+49.8%+306.6%
Year to date−4.5%+364.0%
1 year+56.5%+512.1%
Revenue growth (YoY)+20.1%+39.3%
Gross margin77.1%71.1%
Net margin−2.0%13.8%
P/E (TTM)—35.7×
Price / sales3.2×9.2×
Net cash$256.5M$250.5M
Dividend yield——
Volatility (60d)51.1%61.7%
Short % of float7.1%13.4%
Next earnings——

Shading marks the stronger figure where one clearly exists (lower is better for valuation and volatility).