Bracket chart shows the same information as a bar chart, but in a nice graphical format. The bar stands still between high and low prices in a vertical line.
However, in the chart rack, a rectangle in the middle of the range between the opening and closing prices. According to customs, if the rectangle is filled or colored, the price closed lower than the open.
In the example below, black is filled. For the black rectangle, the top of the rectangle is the opening price and the bottom is closed. If the closing price is higher than the opening price, the rectangle will be white or colorless