东京工业品交易所白银期货主力合约收报58.4日圆/克，较上一交易日上涨0.4圆/克。  
以下是TOCOM 5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              
18/06月   58.4    58.4    58.4    58.4    58.4    0       1                  
18/08月   58.3    58.3    58.3    58.3    58.3    0       3                  
18/10月   58.7    58.5    58.5    58.5    58.5    -0.2    1                  
18/12月   58.4    57.9    58.4    57.9    58.4    0       5                  
19/02月   57.8    58      58.3    58      58.3    0.5     38                 
19/04月   58      58.1    58.7    58      58.4    0.4     19                 
合计                                                      67                 
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。