When you select the Candle Stick series type in the Designer, the DATA ITEMS area displays four data item placeholders. Candle Stick series require four measures to be provided.
•Open - the price at the beginning of the specified period.
•High - the maximum price within the specified period (the upper shadow top).
•Low - the minimum price within the specified period (the lower shadow bottom).
•Close - the price at the end of the specified period