| Developed by Mark Johnson, the Pretty Good Oscillator measures the distance of the current price from a Moving Average, expressed in terms of an Average True Range over a similar period. Johnson's approach was to use it as a breakout system for longer-term trades. According to this approach, if the PGO rises above 3.0, it is a buy signal. Falling below -3.0 gives a trader a sell signal. In both cases, returning to zero can be considered a signal to close the trading position. It is also possible to catch divergences with the Pretty Good Oscillator. They occur when the indicator and price do not move in the same direction and allow a trader to identify turning points. |
