Gann Line
A technical analysis tool developed by W. D. Gann. It consists of a 45-degree line. Prices above the ascending 45-degree line suggest an upward direction of prices. Prices below an ascending 45-degree line suggest a potential change in the direction of prices. Similarly, prices below a descending 45-degree line suggest a downward direction for the market. Prices above a descending 45-degree line suggest a potential reversal to the upside.