k,  my mistake, the word drop isnt right....

the price will be adjusted on EX date.

whether its profitable or not,
the probability of losing money is far more higher than winning money .....especially, if you factor in "BROKERAGE"

Kinda Green Raya and red CNY.

Trend changes

if your selling price is higher than the best buy price, you need to wait for a buyer who is willing to match your asking price.. if you wan to sell immediately, put your selling price to be the same as the best buy price.. it would be sold immediately provided the best buy quantity is more than your selling quantity.. otherwise, only a portion would be sold depending on the best buy quantity available.. the order is valid for one trading day..