Currency Trading Game

how fast can a specific stock change?
in other words, if i buy a stock, how much is irrelevant, how fast can it change in value, not necessarily higher or lower, just change period. i’m trying to nail down the precise details of stock exchange because in the near future i’m going to engage in the “game” of trading. i you probably don’t like the term game but in my opinion anything that has to do with currency is a game and the smartest wins. thanks for any and all advice on the subject.
What do you mean by “change”? You say not higher or lower – price is the only way a stock is going to change in value. You are right that the smartest wins, so if you think this is an important question then I would do a lot more learning before you enter the “game.”
Forex Trading Online