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Principles Of Momentum Indicators

While moving averages excel in trending markets, they can leave traders in the dark when the market consolidates or moves sideways. This is where oscillators step in.

Leading the Way:

Unlike lagging indicators like moving averages, oscillators are known as leading indicators. They aim to anticipate potential trend changes, particularly when a divergence occurs (which we'll explore later).

Visualizing Market Momentum:

Most oscillators share a similar appearance and interpretation. They typically fluctuate within a defined range, often between zero and 100. This range is further divided by a centerline, sometimes at zero depending on the specific formula used. By observing the oscillator's movement within this range, you can gauge market momentum.

A Word of Caution:

Remember, oscillators are secondary indicators. They should never be used in isolation. Always prioritize price action on the chart and ensure it aligns with the overall trend before making any trading decisions based on oscillator signals. Additionally, consider using oscillators in conjunction with other technical indicators for a more comprehensive market analysis.

By understanding the strengths and limitations of oscillators, you can effectively utilize them to navigate trading ranges and potentially identify early signs of trend reversals, enhancing your trading strategy.

Uses of Oscillators

Oscillators can be used to indicate loss of momentum in the price move (trend).

Determining Extremes

Financial markets are, at their core, driven by human emotions. Investor sentiment can swing from optimism (greed) to pessimism (fear) and back again. Oscillators capture these emotional shifts by fluctuating between overbought and oversold zones.

Visualizing Market Extremes:

As an oscillator moves towards the upper extreme of its range (typically above 70 or 80), it suggests the market might be overbought. This indicates a potential loss of momentum, as prices may have risen too quickly and become vulnerable to a correction. Conversely, when the oscillator dips to the lower extreme (often below 30 or 20), it suggests an oversold condition. This could signal a buying opportunity, as prices may have fallen excessively and could be due for a rebound.

Beyond Simple Extremes:

While overbought and oversold readings are valuable, experienced traders often look for additional signals from oscillators. Divergence, for example, occurs when the price movement contradicts the oscillator's movement. This can be a powerful indicator of a potential trend reversal.


Divergence occurs when the price action on the chart contradicts the movement of the oscillator. Imagine the price keeps making new highs (uptrend) while the oscillator fails to confirm this by creating its own new highs. This discrepancy is a sign of divergence.

Extremes Matter:

It's important to note that divergence is most significant when it happens in overbought or oversold territories. When the market is stretched thin (either overbought or oversold) and the oscillator diverges, it suggests a potential shift in momentum. A bullish divergence (oscillator moving up while price stalls or dips) in overbought zones might hint at a weakening uptrend, while a bearish divergence (oscillator moving down while price keeps rising) in oversold zones could indicate a potential reversal from a downtrend.

In the chart below we can see that even though prices are still rising, the oscillator here (RSI) is beginning to decline, causing a bearish (negative) divergence. This gives a warning that the trend could turn down.

When the oscillator starts to turn back up while the prices are still declining, this is bullish (positive) divergence.


While oscillators offer valuable insights, it's crucial to remember they shouldn't be the sole decision-maker for entering or exiting trades. Here's why:

  • Secondary Indicator: Oscillators are considered secondary indicators, meaning they should be used alongside price action and other technical tools for confirmation. Price, after all, remains king in the market.

  • Focus on the Trend: The underlying trend holds significant weight. Look for overbought or oversold conditions primarily in trending markets, as this is where oscillators can be most effective.

  • Divergence in Extremes: Pay close attention to divergence, especially in extreme price territories (overbought or oversold zones). A price making new highs while the oscillator dips lower (bearish divergence) suggests a potential trend reversal, and vice versa.

  • Mid-Point Crossings: Some oscillators have a mid-point or zero line. A crossing above this line might indicate a potential buy signal, while a crossing below could suggest a sell signal. However, these signals are suggestive, not definitive.

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