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Volume by Price
Volume by Price is a perfect indicator comprising price and volume into one instrument. The volume of trades is depicted in the chart horizontally at price intervals. Volume by Price can be used to understand which prices cause the largest activity and volume. This is useful in defining where the majority of historical trading volume happened and help find significant support and resistance lines. Volume by Price can also assist in using price changes or reversals.
As a rule, there is a connection between a price change and a large volume so if the ongoing price is shifting around a level of high volume expect a price direction change. Low volume as well can be connected with times of consolidation or inconstancy. Note that this measure is a very subjective as volume by Price is never enough and of itself for planning trades.