Don’t Know How To Use The Rate Of Change (ROC) Indicator? Read Here

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The Rate of Change (ROC) indicator measures the percentage change of the current price as compared to the price a certain number of periods ago. The ROC indicator might be used to confirm price moves or detect divergences; it might also be used as a guide for determining overbought and oversold conditions. The formula for Rate of Change is expressed below:

  • [(Current Price / Price n periods ago) – 1] x 100

Generally, the Rate of Change is calculated based on 14-periods for input n, but of course can be modified to any trader preferred period. A chart of the Nasdaq 100 ETF (QQQQ) is shown below with the 14-day Rate of Change indicator:

 
Rate of change technical indicator

 

Calculating Rate of Change

The right side of the chart of the QQQQ's shows how the Rate of Change is calculated. The closing price on Day #14 was divided by the closing price 14-days ago on Day #1 which netted 1.0467. One was then subtracted to get .0467 and then it was multiplied by 100 to get 4.67. That means there was a 4.67% increase in the price of the QQQQ's over the 14-day period highlighted in the chart.

Numerous Potential Uses of the Rate of Change Indicator

The Rate of Change indicator might be used to confirm price moves or detect divergences and might be used as a guide for determining overbought and oversold conditions.

Rate of Change as a Potential Confirmation Tool

An example of the ROC indicator confirming price action occurred from Low #1 to Low #2: the stock price of the QQQQ's made higher lows, generally a bullish sign; likewise, the Rate of Change indicator confirmed price action and made higher lows as well.

Rate of Change as a Potential Overbought & Oversold Indicator

In the chart above, when the Rate of Change indicator surpassed the +3% mark, a trader might have interpreted it as having been inadvisable to buy, as prices might have been in an overbought area; in contrast, a trader might be looking for sell signals. Similarly when the ROC entered oversold areas, a trader might avoid selling, as most of the downward move may have been made, rather a trader might be more open to buy signals.

The Rate of Change (ROC) indicator might be used by traders to confirm price movements, detect divergences, and determine potential areas of overbought and oversold. A similar indicator that should be investigated is the Momentum indicator (see: Momentum).

To learn about applying the concept of Rate of Change to volume see: Volume Rate of Change.

How to Get Started Trading Commodities

If you are interested in trading using technical analysis, have a look at our reviews of these regulated brokers to learn which tools they offer:

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CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. Between 73.0%-89.0% of retail investor accounts lose money when trading CFDs. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

Further Reading

Learn more about technical analysis charting concepts and strategies including Momentum, Volatility, Time Series Forecast, Point & Figure, Open Interest, Standard Error Bands, Market Thrust, and Average Directional Movement .

If you'd like a primer on how to trade commodities in general, please see our introduction to commodity trading.

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