I should add this to the site but… that ticker is: Last Price: (The price of the last successful trade) High: (the highest price in the last 24 hours) Low: (the lowest price in the last 24 hours) Volume: (the total amount traded in the last 24 hours)
Current Lowest Buy Price (This is the lowest buy price currently offered by another user) Current Highest Sell Price (This is the highest sell price currently offered by another user)
All trades are between users. So the current buy price and current low price is just what someone else entered. You can always enter a lower or higher one.