Both in Medical Labs

American Shared Hospital Services vs Castle Biosciences

Over the past year AMS returned −41.4% and CSTL returned +35.2%; their daily moves had a correlation of 0.03.

AMS −41.4% CSTL +35.2%Growth of $1, one year, split-adjusted
MetricAMSCSTL
Price$1.23$35.14
Market cap$8.2M$1.07B
Today−1.60%+0.57%
1 month−8.9%−4.1%
6 months−29.7%+42.8%
Year to date−41.7%−9.7%
1 year−45.6%+37.8%
Revenue growth (YoY)+19.2%+20.1%
Gross margin44.4%77.1%
Net margin−6.1%−2.0%
P/E (TTM)——
Price / sales0.3×3.0×
Net cash-$9.7M$256.5M
Dividend yield——
Volatility (60d)36.5%51.8%
Short % of float0.1%7.1%
Next earnings——

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