Quadrant Lines divide the high-low range into four equal sections. There are five lines and four quadrants. The top line marks the high, the bottom line marks the low and the other three lines form the quadrants. The middle line marks the midpoint of the range. Quadrant Lines are not an indicator as such. Instead, they are used as a measuring stick for price action. Quadrant Lines allow chartists to visually quantify price levels relative to the defined range.