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A & D volume is the counterpart to A & D issues so the volume shifts with
the issue's A/D state during the day. Suppose an issue which trades 1m
shares advances 1 point: +1 to A issues and + 1m to A volume. Suppose it
instantly drops 2 points (now -1 point for day): -1 to A issues, +1 to D
issues, -1m to A volume, +1m to D volume.
Earl
-----Original Message-----
From: Allan L. Kaminsky <allank@xxxxxxxxxxxxxxxx>
To: Omega List <omega-list@xxxxxxxxxx>
Date: Thursday, February 05, 1998 9:29 PM
Subject: Intraday NYSE Adv, Decl Volume
>occasionally during the day, I have seen the numbers for @NVA and @NVD
>go down. If they are cumulative figures, this should be impossible. Is
>this bad data dissemination, or am I missing something?
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