Both in REITs

Iron Mountain vs Extra Space Storage

Over the past year IRM returned +14.8% and EXR returned +22.5%; their daily moves had a correlation of 0.31.

IRM +14.8% EXR +22.5%Growth of $1, one year, split-adjusted
MetricIRMEXR
Price$118.66$161.04
Market cap$35.33B$33.61B
Today+1.69%+3.08%
1 month+1.9%+20.3%
6 months−10.1%+11.9%
Year to date+43.0%+23.7%
1 year+14.5%+22.7%
Revenue growth (YoY)+18.5%+3.6%
Gross margin52.8%73.2%
Net margin5.0%27.8%
P/E (TTM)84.4×32.4×
Price / sales4.7×9.7×
Net cash-$17.14B-$13.29B
Dividend yield2.91%4.02%
Volatility (60d)28.6%20.6%
Short % of float2.4%2.7%
Next earnings——

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