东京工业品交易所白银期货主力合约收报50.9日圆/克，较上一交易日下跌0.4日圆/克。  
以下是TOCOM 9月18日白银期货行情:                                                  
合约      昨收    开盘    最高    最低    收盘    涨跌   成交量                   
18/10月   50.5    -       -       -       -       0       -                       
18/12月   50      51.9    51.9    51.9    51.9    1.9     1                       
19/02月   50.2    -       -       -       -       0       -                       
19/04月   50.9    -       -       -       -       0       -                       
19/06月   51.3    51.3    51.3    50.4    50.8    -0.5    8                       
19/08月   51.3    51.5    51.6    50.3    50.9    -0.4    43                      
合计                                                      52                      
注:1.单位:日圆/克；成交量单位:手。                                                
2.最小价格变动单位日圆/克。