Both in Surgical Instruments

DexCom vs Glaukos

Over the past year DXCM returned +36.2% and GKOS returned +171.9%; their daily moves had a correlation of 0.18.

DXCM +36.2% GKOS +171.9%Growth of $1, one year, split-adjusted
MetricDXCMGKOS
Price$82.29$237.60
Market cap$30.69B$14.07B
Today+2.95%−2.01%
1 month−4.6%+45.6%
6 months+34.1%+69.4%
Year to date+24.0%+110.4%
1 year+20.7%+208.2%
Revenue growth (YoY)+11.2%+58.0%
Gross margin64.3%85.2%
Net margin20.5%1.0%
P/E (TTM)31.0×—
Price / sales6.0×20.4×
Net cash$574.2M$269.8M
Dividend yield——
Volatility (60d)29.6%69.7%
Short % of float4.2%7.8%
Next earnings——

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