I have searched on the Net, but I was wondering if anybody could explain this to me in more detail. What exactly determines the price of a stock (share) in a stock exchange? I know it is determined by supply and demand, but what does this mean in more concise terms. For example, how is the price calculated based on the quantity supplied and quantity demanded? How is the quantity demanded and quantity supplied known? I'm 19 so I haven't yet been to a stock exchange, but I was wondering if somebody could explain it. Thanks for the help! BTW, I know strictly speaking this shouldn't be in this forum, but I couldn't find another appropriate forum to place it.