Accumulation/Distribution
Technical IndicatorsA cumulative volume-based indicator that uses the relationship between a pair's closing price and its high-low range to determine whether money is flowing into (accumulation) or out of (distribution) a currency pair.
What Is Accumulation/Distribution?
The Accumulation/Distribution (A/D) line, developed by Marc Chaikin, builds on the idea that where the close falls within the bar's range reveals buying or selling pressure. If a bar closes near its high, most of the volume is classified as accumulation (buying). Near the low, distribution (selling). The close location value (CLV) is calculated as ((Close - Low) - (High - Close)) / (High - Low), then multiplied by volume and added to a running total.
Reading the A/D Line
A rising A/D line confirms an uptrend because buying pressure dominates. A falling A/D line confirms a downtrend. The most valuable signal is divergence: when price makes a new high but the A/D line does not, it means that despite higher prices, more bars are closing in their lower range, suggesting distribution is happening. This divergence on EUR/USD daily charts frequently precedes meaningful pullbacks.
Using A/D with Other Tools
A/D works best as a confirmation and divergence tool. Confirm breakouts by checking that A/D is trending in the breakout direction. Before entering a long trade, verify that A/D is rising or at least flat, not declining. The Chaikin Oscillator applies EMA smoothing to the A/D line for cleaner signals. Combine A/D with RSI (Relative Strength Index) or MACD (Moving Average Convergence Divergence) to add a volume dimension to your momentum analysis.
Related Terms
On-Balance Volume
A cumulative volume-based indicator that adds volume on up days and subtracts volume on down days. Rising OBV confirms uptrends, while falling OBV confirms downtrends. Divergence between OBV and price can signal upcoming reversals.
Money Flow Index
A volume-weighted RSI that combines price and volume data to measure buying and selling pressure. It oscillates between 0 and 100, with readings above 80 indicating overbought and below 20 indicating oversold conditions.
Chaikin Oscillator
A volume-based momentum indicator that measures the difference between the 3-day and 10-day exponential moving averages of the Accumulation/Distribution line. It helps identify whether buying or selling pressure is building.