Vetr Top Raters Upgrade Shake Shack, 66% Bullish By: Benzinga via Benzinga March 03, 2016 at 15:08 PM EST Top Raters at the Vetr Community have upgraded shares of Shake Shack Inc (NYSE: SHAK) from 2.0 Stars to 3.0 Stars, out of a possible ... Read More >> Related Stocks: McDonald's Corp Shake Shack Inc