Commodity Channel Index


Commodity Channel Index

The Commodity Channel Index (CCI) is an oscillator originally introduced by Donald Lambert in an article published in the October 1980 issue of Commodities magazine (now known as Futures magazine).

Since its introduction, the indicator has grown in popularity and is now a very common tool for traders in identifying cyclical trends not only in commodities, but also equities and currencies. The CCI can be adjusted to the timeframe of the market traded on by changing the averaging period.

Contents

Calculation

CCI measures a security’s variation from the statistical mean.[1]

The CCI is calculated as the difference between the typical price of a commodity and its simple moving average, divided by the mean absolute deviation of the typical price. The index is usually scaled by an inverse factor of 0.015 to provide more readable numbers:

CCI = \frac{1}{0.015}\frac{p_t - SMA(p_t)}{\sigma(p_t)},

where the pt is the \text{Typical Price} = \frac{H + L + C}{3}, SMA is the simple moving average, and σ is the mean absolute deviation.

For scaling purposes, Lambert set the constant at 0.015 to ensure that approximately 70 to 80 percent of CCI values would fall between -100 and +100. The CCI fluctuates above and below zero. The percentage of CCI values that fall between +100 and -100 will depend on the number of periods used. A shorter CCI will be more volatile with a smaller percentage of values between +100 and -100. Conversely, the more periods used to calculate the CCI, the higher the percentage of values between +100 and -100.

Interpretation

Relative Strength Index 14-period

Traders and investors use the Commodity Channel Index to help identify price reversals, price extremes and trend strength. As with most indicators, the CCI should be used in conjunction with other aspects of technical analysis. CCI fits into the momentum category of oscillators. In addition to momentum, volume indicators and the price chart may also influence a technical assessment. It is often used for detecting divergences from price trends as an overbought/oversold indicator, and to draw patterns on it and trade according to those patterns. In this respect, it is similar to bollinger bands, but is presented as an indicator rather than as overbought/oversold levels.

The CCI typically oscillates above and below a zero line. Normal oscillations will occur within the range of +100 and -100. Readings above +100 imply an overbought condition, while readings below -100 imply an oversold condition. As with other overbought/oversold indicators, this means that there is a large probability that the price will correct to more representative levels.

The CCI has seen substantial growth in popularity amongst technical investors; today's traders often use the indicator to determine cyclical trends in not only commodities, but also equities and currencies.[2]

The CCI, when used in conjunction with other oscillators, can be a valuable tool to identify potential peaks and valleys in the asset's price, and thus provide investors with reasonable evidence to estimate changes in the direction of price movement of the asset.[2]

Lambert's trading guidelines for the CCI focused on movements above +100 and below -100 to generate buy and sell signals. Because about 70 to 80 percent of the CCI values are between +100 and -100, a buy or sell signal will be in force only 20 to 30 percent of the time. When the CCI moves above +100, a security is considered to be entering into a strong uptrend and a buy signal is given. The position should be closed when the CCI moves back below +100. When the CCI moves below -100, the security is considered to be in a strong downtrend and a sell signal is given. The position should be closed when the CCI moves back above -100.

Since Lambert's original guidelines, traders have also found the CCI valuable for identifying reversals. The CCI is a versatile indicator capable of producing a wide array of buy and sell signals.

  • CCI can be used to identify overbought and oversold levels. A security would be deemed oversold when the CCI dips below -100 and overbought when it exceeds +100. From oversold levels, a buy signal might be given when the CCI moves back above -100. From overbought levels, a sell signal might be given when the CCI moved back below +100.
  • As with most oscillators, divergences can also be applied to increase the robustness of signals. A positive divergence below -100 would increase the robustness of a signal based on a move back above -100. A negative divergence above +100 would increase the robustness of a signal based on a move back below +100.
  • Trend line breaks can be used to generate signals. Trend lines can be drawn connecting the peaks and troughs. From oversold levels, an advance above -100 and trend line breakout could be considered bullish. From overbought levels, a decline below +100 and a trend line break could be considered bearish.[3]

References

External links


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Commodity Channel Index — An index used in technical analysis. High values mean a potential future correction (downward movement in underlying asset) and low values potentially forecast a rally. Details in Donald Lambert s October 1980 article in Commodities Magazine.… …   Financial and business terms

  • Commodity Channel Index - CCI — An oscillator used in technical analysis to help determine when an investment vehicle has been overbought and oversold. The Commodity Channel Index, first developed by Donald Lambert, quantifies the relationship between the asset s price, a… …   Investment dictionary

  • DUAL Commodity Channel Index - DCCI — A method used in technical analysis to identify when an asset or market is overbought or oversold. DCCI is employed by graphing a smoothed Commodity Channel Index (CCI) line along with an unsmoothed one. Crossovers of the two lines indicate… …   Investment dictionary

  • Mass index — The mass index is an indicator, developed by Donald Dorsey, used in technical analysis to predict trend reversals. It is based on the notion that there is a tendency for reversal when the price range widens, and therefore compares previous… …   Wikipedia

  • Donchian channel — The Donchian channel is an indicator used in market trading developed by Richard Donchian. It is formed by taking the highest high and the lowest low of the last n periods. The area between the high and the low is the channel for the period… …   Wikipedia

  • Negative volume index — Nearly 75 years have passed since Paul L. Dysart, Jr. invented the Negative Volume Index and Positive Volume Index indicators. The indicators remain useful to identify primary market trends and reversals. In 1936, Paul L. Dysart, Jr. began… …   Wikipedia

  • Ulcer Index — The Ulcer Index is a stock market risk measure or technical analysis indicator devised by Peter Martin in 1987,[1] and published by him and Byron McCann in their 1989 book The Investors Guide to Fidelity Funds. It s designed as a measure of… …   Wikipedia

  • Accumulation/distribution index — is a technical analysis indicator intended to relate price and volume in the stock market. Contents 1 Formula 2 Chaikin oscillator 3 Similar indicators 4 …   Wikipedia

  • Money Flow Index — (MFI) is an oscillator calculated over an N day period, ranging from 0 to 100, showing money flow on up days as a percentage of the total of up and down days. Money flow in technical analysis is typical price multiplied by volume, a kind of… …   Wikipedia

  • Relative Strength Index — The Relative Strength Index (RSI) is a technical indicator used in the technical analysis of financial markets. It is intended to chart the current and historical strength or weakness of a stock or market based on the closing prices of a recent… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.