Technique | Indicator

Bullish/Bearish Divergence

"A subtle but powerful signal that reveals a possible trend reversal by comparing price action and a technical indicator."

In-Depth Definition

A bullish divergence occurs when the price of an asset reaches lower and lower lows, while a technical indicator (such as the RSI, MACD, or stochastic oscillator) forms higher and higher lows. This suggests that selling pressure is weakening and that a potential rise is coming. Conversely, a bearish divergence occurs when the price reaches higher and higher highs, but the indicator shows lower and lower highs. This indicates that buying pressure is decreasing and that a price decline may follow. Interpreting divergences requires caution. They are not absolute buy or sell signals, but rather alerts that must be confirmed by other technical indicators, volume analysis, or candlestick patterns. The strength of a divergence is often related to its magnitude and the time period over which it develops. A divergence on a weekly chart will generally be more significant than a divergence on a 15-minute chart. There are also "hidden divergences" which, unlike classic divergences, signal a continuation of the current trend. A hidden bullish divergence occurs when the price makes a higher low and the oscillator makes a lower low. Conversely, a hidden bearish divergence occurs when the price makes a lower high and the oscillator makes a higher high.

StarQuant Insight

StarQuant's AI can be used to automatically identify bullish and bearish divergences across a multitude of assets and periods. It can also weight the relevance of these divergences based on their magnitude, duration, and concordance with other indicators and patterns. In addition, the AI can backtest divergence-based trading strategies to determine their historical effectiveness and optimize their parameters.

Pro Tip

Never trade a divergence in isolation. Use it as a warning signal and wait for confirmation (trend line break, reversal candlestick pattern, etc.) before taking a position. Also monitor the volume; increasing volume in the direction of the anticipated move strengthens the divergence signal.