I am still keeping 606 and I bought it at 7.00, I think if $5.8 - $6 is a safe price to buy. I will not sell it unless there is a very very sudden big drop in the market. I mean like 股災, may be I will sell it and buy it back at a lower price. When it went to 6.0x yesterday, it rose very quickly back to 6.3, so I think it might reach its lowest point and I will wait and wait until I get a profit.