东京工业品交易所橡胶期货主力合约收报210.2日圆/千克，较上一交易日下跌2日圆/千克。           
以下是TOCOM 9月21日橡胶期货行情:                                                           
合约      昨收    开盘    最高    最低    收盘    涨跌    成交量                           
17/09月   210     210     211.3   206.9   207.8   -2.2    33                               
17/10月   209.5   211.3   213.7   208.8   208.8   -0.7    55                               
17/11月   210.4   209.9   215     208.8   209.5   -0.9    296                              
17/12月   209.3   210     214.3   207.7   208.9   -0.4    443                              
18/01月   210.6   210.6   215.5   208.6   208.9   -1.7    727                              
18/02月   212.2   212.7   217.4   210.2   210.2   -2      6,992                            
合计                                                      8,546                            
注:1.单位:日圆/千克；成交量单位:手。                                                       
2.最小价格变动单位日圆/千克。