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From: merrill@rex.DEC
Newsgroups: net.invest
Subject: re: limit orders
Message-ID: <514@decwrl.UUCP>
Date: Sat, 9-Feb-85 11:57:46 EST
Article-I.D.: decwrl.514
Posted: Sat Feb  9 11:57:46 1985
Date-Received: Mon, 11-Feb-85 05:15:03 EST
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Some brokers "check" the limits themselves and they usually have to 
execute a little beyond the target.  Big Houses have their own specialists
on the Street who check limits and usually execute at or Better than target.
Merrill-Lynch limits the time for an open limit order to one month to keep
the number of things to check to some managable size.

Yes, I would guess that the bigger specialists have computers do a lot of
that work for them.

Rick