向高手请教，按定义， xiv = vxx 为何今天vxx 跌3.15%，而 xiv 仅涨2.21

所有跟帖： 

• 2.21%， 谢谢 -炒股怡性- ♂ (0 bytes) () 12/14/2015 postreply 10:24:48

• the svxy tracks vix future better than xiv also plus -maymayw- ♀ (79 bytes) () 12/14/2015 postreply 10:35:01

• just checked svxy, its value is diffrent from xiv only by 0.1%, -炒股怡性- ♂ (0 bytes) () 12/14/2015 postreply 10:45:58

• 还是不要碰这类东西为好。 -hoopeo- ♂ (105 bytes) () 12/14/2015 postreply 10:35:16

• 不打算长期持有，抢个反弹波段而已。谢谢提醒。 -炒股怡性- ♂ (0 bytes) () 12/14/2015 postreply 10:51:46

• 这东西没规律,太难琢磨,今天股市微涨,XIV大涨 -坚持原则- ♂ (0 bytes) () 12/14/2015 postreply 11:58:30