Both in Medical Labs

Sera Prognostics vs Castle Biosciences

Over the past year SERA returned −45.9% and CSTL returned +51.9%; their daily moves had a correlation of 0.10.

SERA −45.9% CSTL +51.9%Growth of $1, one year, split-adjusted
MetricSERACSTL
Price$2.03$36.68
Market cap$80.1M$1.12B
Today−0.98%+6.29%
1 month+1.0%+5.2%
6 months+2.0%+51.3%
Year to date−31.2%−5.7%
1 year−45.7%+53.1%
Revenue growth (YoY)+76.5%+20.1%
Gross margin−66.7%77.1%
Net margin−30463.3%−2.0%
P/E (TTM)——
Price / sales1,144.0×3.1×
Net cash$46.4M$256.5M
Dividend yield——
Volatility (60d)34.0%49.9%
Short % of float0.7%7.1%
Next earnings——

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