以下为CBOT玉米7月20日收盘价(单位:美分/蒲式耳):                                                                        
合约月份      开盘价         最高价               最低价               收盘价               涨跌               成交量         
18年09月      351'2            355'6               349'6                     355'2               +4'0               58,739            
18年12月      365'2            369'6               363'6                     369'0               +4'0               105,099         
19年03月      376'4            380'4               374'6                     380'0               +3'4               32,675            
19年05月      382'6            386'6               381'2                     386'2               +3'4               11,023            
19年07月      388'0            392'4               387'0A                  392'0               +3'2               12,464