东京工业品交易所白银期货主力合约收报52日圆/克，较上一交易日下跌0.3日圆/克。  
以下是TOCOM 8月17日白银期货行情:                                             
合约      昨收    开盘    最高    最低    收盘    涨跌   成交量              
18/08月   51.3    -       -       -       -       0       -                  
18/10月   50.8    -       -       -       -       0       -                  
18/12月   52      52.1    52.2    52.1    52.1    0.1     4                  
19/02月   51.3    51.5    51.5    50.7    50.7    -0.6    8                  
19/04月   52      51.4    52.5    51.3    51.9    -0.1    44                 
19/06月   52.3    51.6    53      51.4    52      -0.3    63                 
合计                                                      119                
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。