东京工业品交易所铂金期货主力合约收报3,467日圆/克，较上一交易日下跌36日圆/克。    
以下是TOCOM 11月21日铂金期货行情:                                                
合约      昨收    开盘    最高    最低    收盘    涨跌  成交量                   
17/12月  3,416   3,420   3,420   3,359   3,381   -35     110                     
17/02月  3,418   3,412   3,421   3,358   3,383   -35     155                     
18/04月  3,413   3,413   3,413   3,357   3,384   -29     146                     
18/06月  3,408   3,406   3,406   3,353   3,376   -32     213                     
18/08月  3,405   3,401   3,410   3,342   3,367   -38     1,218                   
18/10月  3,403   3,400   3,409   3,338   3,367   -36     12,006                  
合计                                                     13,848                  
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。