Both in Medical Labs

Quest Diagnostics vs RadNet

Over the past year DGX returned +43.6% and RDNT returned +2.3%; their daily moves had a correlation of 0.22.

DGX +43.6% RDNT +2.3%Growth of $1, one year, split-adjusted
MetricDGXRDNT
Price$255.68$80.26
Market cap$28.22B$6.32B
Today+3.49%+9.67%
1 month+11.9%+14.2%
6 months+35.2%+36.9%
Year to date+47.3%+12.5%
1 year+43.0%+3.1%
Revenue growth (YoY)+10.0%+25.0%
Gross margin33.6%100.0%
Net margin10.0%1.2%
P/E (TTM)25.1×—
Price / sales2.4×2.8×
Net cash-$4.75B-$610.5M
Dividend yield1.35%—
Volatility (60d)22.1%36.5%
Short % of float3.2%12.9%
Next earnings——

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