Sovran Self Storage Shares Fall As BMO Downgrades By: Benzinga via Benzinga May 18, 2016 at 08:19 AM EDT BMO Capital Markets' Paul Adornato downgraded Sovran Self Storage Inc (NYSE: SSS) from Outperform to Market Perform while increasing the ... Read More >> Related Stocks: Bank of Montreal Cubesmart Extra Space Storage Inc REIT Review Composite Index