A Kagi chart displays supply and demand trends using a sequence of linked vertical lines. The thickness and direction of the lines vary depending on the price movement. If closing prices go in the direction of the previous Kagi line, then that Kagi line is extended. However, if the closing price reverses by the preset reversal amount, a new Kagi line is charted in the next column in the opposite direction. Thin lines indicate that the price breaks the previous low (supply) while thick lines indicate that the price breaks the previous high (demand).