Both in REITs

Realty Income vs American Tower

Over the past year O returned −2.2% and AMT returned +6.3%; their daily moves had a correlation of 0.36.

O −2.2% AMT +6.3%Growth of $1, one year, split-adjusted
MetricOAMT
Price$56.93$187.78
Market cap$53.87B$87.09B
Today−0.47%+1.02%
1 month+6.4%+16.6%
6 months−10.8%+3.4%
Year to date+1.0%+7.0%
1 year−2.5%+4.9%
Revenue growth (YoY)+6.6%+2.5%
Gross margin92.1%72.8%
Net margin24.1%27.5%
P/E (TTM)42.5×26.3×
Price / sales9.7×7.9×
Net cash-$27.34B-$35.97B
Dividend yield5.72%3.81%
Volatility (60d)15.9%28.9%
Short % of float4.1%1.5%
Next earnings——

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