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Re: buy4fun post# 15812

Wednesday, 07/18/2012 11:29:33 AM

Wednesday, July 18, 2012 11:29:33 AM

Post# of 31427
ATDF does not "equal" Ameritrade. ATDF is the new market maker ID for what used to be AUTO, which is Automated Trading Desk, LLC. It is owned by Citigroup Inc. Some TD Ameritrade orders may be routed to ATDF, but they can also be routed to CSTI, NITE or ETRF, and ATDF also handles orders from all sorts of other firms.

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