In
technical analysis, a situation on a
chart in which a
security's price undergoes a steep rise or fall, then
trades within a narrow
price range. When a steep rise proceeds the narrow trading, it looks somewhat like a flag raised on a pole. Many analysts believe that when a flag occurs, the narrow trading is only temporary and will soon be followed by another steep rise or fall. That is, a rise will follow a rise and a fall will follow a fall.