First you have to understand how an index works
what are the index's component stocks.

For the dow, Dupont, 3m, JPM all dragged big time yesterday.

Also, if you look at the historical correlation between the STI and the DOW, it's not that strong is it? The nikkei seems to be highly correlated with the DOW, but the STI is not, STI and HSI has quite good correlation.

刚想说以下
港汇创三年高，新币也是新高了吧，说明什么？资金转道新兴市场来了！美股三年高点，套利很正常。看看中国股市，五年底点，十八大将开，心得局面啊！任何大型基金经理都会心动的，调配10-15%的资金到亚洲。。。你懂的

偶手上只有小新的股票,小新也三年新高了,那该不该套利呢?
谢谢你的回复,提供了新的思路.

谢谢呀.
不太做短炒,所以correlation的单位通常不用分时,而是用天.如果连续几天出现背离,就会开始关注.
而且总是觉得小新喜欢follow DJI.

我没听错吧
小新也三年新高？2011年第一天开市小新糕点3261。。。这么快就不记得了