The Accumulation/Distribution is a momentum
indicator that associates changes in price and volume. The indicator is
based on the premise that the more volume that accompanies a price move,
the more significant the price move.
Interpretation
The Accumulation/Distribution is really a variation
of the more popular On Balance Volume indicator. Both of these
indicators attempt to confirm changes in prices by comparing the volume
associated with prices.
When the Accumulation/Distribution moves up, it
shows that the security is being accumulated, as most of the volume is
associated with upward price movement. When the indicator moves down, it
shows that the security is being distributed, as most of the volume is
associated with downward price movement.
Divergences between the Accumulation/Distribution
and the security's price imply a change is imminent. When a divergence
does occur, prices usually change to confirm the
Accumulation/Distribution. For example, if the indicator is moving up
and the security's price is going down, prices will probably reverse.
Example
The following chart shows Battle Mountain Gold and
its Accumulation/Distribution.
Battle Mountain's price diverged as it reached new
highs in late July while the indicator was falling. Prices then
corrected to confirm the indicator's trend.
Calculation
A portion of each day's volume is added or
subtracted from a cumulative total. The nearer the closing price is to
the high for the day, the more volume added to the cumulative total. The
nearer the closing price is to the low for the day, the more volume
subtracted from the cumulative total. If the close is exactly between
the high and low prices, nothing is added to the cumulative total.