Today HSI dropped more than 900 points.
939 is at 5.13, dropped 5.35% (PE 7.77)
1398 is at 4.15 dropped 7.57% (PE7.26)
Therefore personally I would choose 1398 due to
1)it is more oversold,
2) it is cheaper, we can buy more stock with same amount of money
3) PE is lower.

[ 本帖最後由 bigearbull 於 2011-9-23 01:55 編輯 ]

The current price for
939 is at 5.03
1394 is  at 3.99
The price ratio is about 5:4
We can compare which is better after a period of time, say 1 month later by buying
4 lots of 939 and 5 lots of 1394 (same amount of money)