Commodity Channel Index is designed to detect
beginning and ending market trends. This study measures the distance
between the share prices and their Moving Average, and thus allows
a measurement for the trend strength and/or intensity.
Properties
Period: The number of bars in
a chart. If the chart displays daily data, then period denotes days;
in weekly charts, the period will stand for weeks, and so on. The
application uses a default of 20, with 14 being another common setting.
Aspect: The Symbol field on which
the study will be calculated. Field is set to "Default",
which, when viewing a chart for a specific symbol, is the same as
"Close".
Interpretation
This index, as suggested by its name, was designed
for the futures market but is today also used for shares. According
to the developer, Lambert, values of +100 to –100 point to
a market with no trends, and thus do not supply any trade studies.
Also, according to Lambert, 70% to 80% or all price fluctuations
fall within +100 and –100 as measured by the index. Buying
and selling signals only occur when the +100 line (buy) and the
–100 (sell) are crossed.
The trading rules for the CCI are as follows:
Establish a long position when the CCI
exceeds +100.
Liquidate when the index drops below +100.
For a short position, you use the –100
value as your reference point. Any value less than –100,
e.g. 125, suggests a short position, while a rise to –85
tells you to liquidate your short position.
Literature
Lambert, Donald R. Commodity Channel Index,
Commodities magazine. October, 1980.
Colby, Robert F., Myers, Thomas. A. The Encyclopedia
of Technical Market Indicators. Dow Jones – Irwin. Homewood,
IL. 1988.
Lebeau, Charles, and Lucas, David. Technical
Trader’s Guide to Computer Analysis of the Futures Market.
Homewood, IL: Business One Irwin, 1991.
Jobman, Darrel R. The Handbook of Technical
Analysis. Irwin Professional Publishing. 1995.
Introduction
