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[ Glossary menu ]
The Intermediate-Term Breadth Momentum Oscillator
(ITBM) was developed to add a new perspective to interpretation of the McClellan
Oscillator. We use the Ratio-Adjusted version of the McClellan
Oscillator.
The McClellan Oscillator is primarily an expression
of short-term breadth movement, which is calculated by subtracting a 5%
exponential average of daily advances minus declines divided by the total
daily advances and declines from a 10% exponential average. Through movement
above and below the Zero Line the McClellan Oscillator gives us an idea of
which way money is moving -- in or out of the market. However, movement below
the Zero Line has much less serious implications when the components of the
McClellan Oscillator, the 5% and 10% exponential averages remain in positive
territory.
For example, since the beginning of 1995 through
February 1996 the McOsi has been unusually difficult to decipher because
it has failed to remain above or below the Zero Line for any length of time,
giving the impression of an undecided market. Also, considering the extraordinary
strength of the market during that period, one would have thought that the
McClellan Oscillator would have mostly remained above the Zero Line. I found
this to be very confusing, so I set out to discover what the problem
was.
The answer, as I said, was in the movement
of the McClellan Oscillator components. For most of that period both the
5% and 10% exponential averages remained well above the Zero Line, indicating
that internal strength relating to breadth was exceptionally high, not weak
as the McClellan Oscillator might have implied.
I decided to develop an indicator that would
incorporate both the McClellan Oscillator and its components, so that the
condition of the components would be expressed in the resulting graph. The
ITBM Oscillator is the result of this effort.
To calculate the ITBM add the daily McClellan
Oscillator (Ratio-Adjusted) to the daily 10% exponential average
(Ratio-Adjusted), then calculate a 20 day exponential average (0.10 exponent)
of the result. It gives a much better perspective of breadth than the McOsi
alone and lets us know when negative McClellan Oscillator readings should
be taken seriously.
The ITBM is a barometer of breadth. The absolute
value indicates how overbought/oversold the market is. Direction is most important
because it indicates whether the market is getting stronger (rising) or weaker
(falling). The best condition is for the ITBM to be rising above its 10-EMA, and
the worst is falling below its 10-EMA. It is extremely negative if the ITBM tops
below its 10-EMA and below the zero line.
The daily ITBM reading is reported on our Daily
Market/Signal Summary Report and is included in our Daily Charts.
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