Group 1 - The article provides a market analysis focusing on Constellation Brands Inc Class A and Molson Coors Brewing Co Class B, highlighting their performance and market trends [1] Group 2 - Constellation Brands has shown significant growth in its premium beer segment, contributing to an increase in overall revenue [1] - Molson Coors Brewing has been adapting its product offerings to meet changing consumer preferences, which has impacted its market share [1]