The price of 2628 is already too high.  If it is to rise again, will only do it slowly.    Hold to it if you have bought the share at lower price, but don't put in new money on it.  Turn to the shares with natural resources and you can make more money.

Judging from its P/E, 2628 hardly worths its present price.  The main reason to support its sharp rise recently is its prospect into the next 5 years.  

With the price of 2628 went over $20, will small inestors like you and I  buy it?  Will any of your friends who you know but it? I think most of us who have bought 2628 at a lower price have sold it  Then, who were crazily buying it?  It is not small amount of money to push up 2628 to $22, with huge amount of transaction.

Purely on the transaction trend of 2628, it will rise further.  There may be some real causes for it to go so fast, but they are not known to small investors.  We can only guess.

2628 is still under consolidation.  $20 to $24 is about the right range to watch for

I think 2628 in China is  like 005 in Hong Kong.  If its price drops too far, small investors will line up to buy it.  So I am not too negative about 2628.