Technical Analysis
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Technical Analysis, Studies, Indicators:
Advance Decline Issues Ratio

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We are the only source of advance decline indicators for U.S. indexes and exchanges on daily and intraday level which allows to use it in the indexes technical analysis.

The formula for calculating the A/D issues ratio is simple:

The A/D momentum volume ratio is the line where at each point of time (horizontal scale) you can see the result of dividing of the advancing by declining momentum volume (vertical scale).

In the bottom pane of Chart 2 below, you can see a graphic representation of the A/D volume ratio. The vertical scale provides the actual ratio of advancing to declining issues. You will see a green line when the volume of advancing issues exceeds the volume of declining issues (i.e., an AD volume ratio > 1). The line turns red, when the volume of declining issues surpasses the volume of advancing issues (i.e., an AD volume ratio between 0 and 1).

Chart 2. S&P 500 5-day intraday (one bar = 15 min)
Advance/Decline Volume Ratio

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