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Bob,
I have seen the same thing. My guess is you are using UMDS. It is saving
all ticks from all exchange sources. In the instances I checked, each fo
these came from the Nasdaq. If you limited your data to either only AMEX
or exclude Nasdaq, that should take care of it. As to why it is happening
or if it is real ticks, I don't know.
John
At 07:56 AM 4/27/2001, BobR wrote:
>The attached chart of the QQQ is one big negative I have with DTN satellite
>data. None of the other symbols I track have these kind of outlying data
>points which makes me sustpect of the source of data rather than the DTN
>feed. Anyone have any ideas on this? There are just too many far out
>values to try and edit each one. Or are they real trades where someone got
>screwed?
>
>thanks,
>bobr
>
>
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