Cocoons have a future. According to relevant public information, Jiaxing Cocoon Futures (Jiaxing Factory Silk Futures) is the first agricultural futures product listed by Zhengshang Stock Exchange, and cocoon refers to cocoon. The capsule protective layer of mulberry in pupal stage contains pupae, and the cocoon layer can be reeled, and the cocoon layer and the silk waste after reeling can be used as raw materials for silk cotton and silk spinning.