Group 1 - The core viewpoint of the news is that the China Securities Index for food and beverage has shown mixed performance, with a recent decline in the index despite a slight increase over the past month [1][2]. - The China Securities Index for food and beverage has increased by 1.92% in the last month, but has decreased by 1.96% over the last three months and year-to-date [2]. - The index is composed of 50 listed companies from the food and beverage sector, reflecting the overall performance of this industry in the Shanghai and Shenzhen markets [2]. Group 2 - The top ten weighted companies in the index include Kweichow Moutai (15.84%), Wuliangye (13.97%), and Yili Group (12.51%) [2]. - The index is primarily composed of companies listed on the Shanghai Stock Exchange, which accounts for 63.40% of the index, while the Shenzhen Stock Exchange accounts for 36.60% [2]. - The index is adjusted semi-annually, with changes implemented on the next trading day following the second Friday of June and December [3]. Group 3 - Public funds tracking the food and beverage sector include the Huaan CSI Food and Beverage ETF [4].