Boston Beer shares were up 3.15% to $356.38 on Monday. The firm is also bullish on the company's third-quarter earnings estimate, raising its guidance to $3.27 a share from $2.87. The consensus is for Boston Beer to report earnings of $2.82 a share. "We continue to think management's FY19 guidance is conservative, and we expect another "beat and raise" quarter when the company reports 3Q results," Grandet said.