The Detrended Price Oscillator attempts to filter out trend in order to focus on the underlying cycles of price movement. To accomplish this, the moving average (generally 14-period) becomes a straight line and price variation above and below the moving average becomes the Price Oscillator. The Detrended Price Oscillator technical indicator attempts to show overbought or oversold levels and might also be used to potentially signal buy and sell signals.
The chart of the S&P 500 E-mini Futures contract visually depicts the Detrended Price Oscillator:
Interpreting the Detrended Price Oscillator
When the Detrended Price Oscillator is above the zero line, it means that price is above its moving average, typically interpreted as a bullish sign. Similarly, when the Detrended Price Oscillator is below the zero line, it means that price is below its moving average, considered to be a bearish sign. There are two interpretations of buy and sell signals:
Potential Buy Signal
- When Detrended Price Oscillator crosses above the zero line.
- When Detrended Price Oscillator is in a confirmed oversold area, as referenced by prior lows of the oscillator, and the Detrended Price Oscillator and price both break the downward resistance trendline.
Potential Sell Signal
- When Detrended Price Oscillator crosses below zero line.
- When Detrended Price Oscillator is in a confirmed overbought area, as referenced by prior highs of the oscillator, and the Detrended Price Oscillator and price both break the upward supporting trendline.
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