Leaderboard

If you chart with lines you'll just get 2 lines one each representing the bid and ask. If you hover over an individual candle you'll get the time average for the Bid and Time average for the Ask for the 3 minutes (or whatever timeframe you selected) as the body of the bar with the candle wicks being the high Bid and Ask on either end. If that's the same during your timeframe you have a solid candle. Look at ACN on the 2hour/3 minute straddle today. The opening candle goes from a max ask of 10.00 to a min bid of 1.85 at open but the body (average) only represents $2.77 - $2.35, after the first candle it normalizes.

in Edit -> Chart parameters you can change what to show (mid or bid ask) I usually use line charts for that sort of grpah but I think if you pick bid/ask the ends of the cande represent the highest ask and the lowest bid in that candle period (15 mins, 30 mins - whatever you pick) and the 'body of the candle the range of the mid point in that period. I fyou choose mid the body of the candle should represent the change of the mid price in that period and the ends the highest/lowest mid point in that time. As I said thats an educated guess and I think maybe line charts make more sense for what you want to see here. m.