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If I buy 1,000 shares of IBM on the NYSE , what is the volume
I buy 1,000 shares
Some one sells me 1,000 shares.
In this example, is the volume 1,000 or 2,000.
> NYSE - centralized transaction processing, so each trade has its volume
> recorded once.
Last time I checked with Jefferies ( ECN , Los Angeles), If they crossed the
trade , they reported it twice.i.e. One dealer, 1000 to buy & 1000 to sell,
the volume reported was 2000 (for all exchanges )
Note: since this is ECN, it could be valid for all markets.
> NASD - dealer mkt, so if the trade is done thru 2 different dealer, the
> trade volume is reported twice. if the trade is done thru 1 dealer by
> crossing between 2 clients/pros, then it will be reported once only.
> so, the volume does not make any sense in NASD :)
>
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