The Volume Accumulation Oscillator (VAO) is more sensitive to volume versus price than the On Balance Volume indicator.
The formula for Volume Accumulation is:
VAC = Volume * ( Close – High + Low / 2 )
A rising price trend will be confirmed by a rising VA line. An uptrend paired with a rising Volume Accumulation line is considered bullish while a Volume Accumulation line that deviates from the price shift direction should warn of a near-term price correction.
VAO assigns a proportional amount of volume to the price according to the relationship between the closing price and the average price for the day. • A close above the mean price is given a positive value and a close below the mean a negative value.
The volume indicator of accumulation/distribution by Marc Chaikin technically analyses both market indexes and separate shares, and should also comprise knowledge of tenders’ volume to help analysts to get the right vision of the essence of every particular market.
Volume Accumulation uses the connection between the closing price and the mean price to appoint a proportion to the volume (if compared to the OBV indicator (On Balance Volume which appoints all the day’s volume to the sellers if it closes down or to the buyers if a security closes up).