disagree. Before 2000, there was

a very profitable trading strategy which was called cutting spread. 不用预测。 现在也有一种不预测也能赚钱的的方法，叫arb trading.

所有跟帖： 

• 这些都被HFT/电脑瞬间抹去，梦想了 -猛狮- ♂ (0 bytes) () 09/24/2011 postreply 09:42:04

• 不是的，如果是那样，就不会有那么多trading firms了 -investor50- ♂ (0 bytes) () 09/24/2011 postreply 09:44:33

• 你说这些抹去了，那pair trading不会抹去吧 -investor50- ♂ (0 bytes) () 09/24/2011 postreply 09:46:40

• 这种例子太多，这就是为什么 -investor50- ♂ (21 bytes) () 09/24/2011 postreply 09:48:33

• 我认为，任何program都有s穴，用机器和机器斗，那我们是劣势，还处远古时代 -eyewear- ♂ (0 bytes) () 09/24/2011 postreply 10:02:39

• 回复：disagree. Before 2000, there was -investor50- ♂ (79 bytes) () 09/24/2011 postreply 09:43:08