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ECNs, Exchanges
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re: Suspension
Vitaliy Kantor
26 Mar 1998 10:22AM ETTechnically you send CancelReplace w/o suspend in ExecInst and can also make other changes if you will.
> That's what I wanted to open up for discussion - might even be necessary to 'invent' a message type that can do that. I would hate to see CancelReplace be misused for this...
I don't consider this usage of CancelReplace for (un)suspending *single* order to be so distasteful as you imply. I'd think that special message for affecting order state in some special way is overkill and just increase complexity of the protocol.
However I agree that we should consider special messages for bulk operations including (un)suspend for all or subsets of outstanding orders. Benefits due to better delivery time are quite obvious.
Vitaliy Kantor
Morgan Stanley
>
> Witold Sames
> wsames@bloomberg.net
>
> > Once an order has been suspended, how do you "unsuspend" (or more appropriately, activate) that very same order?
> >
> > > At least by design 39=9 should mean same suspension for ECN as for others, i.e. don't execute it. As you know there is no bulk operations in the protocol now. So you can suspend(or release later) one order in one message.
> > >
> > > It was proposed at ECN work group meeting(see minutes) to include bulk operations in the protocol. This suggestion will be considered by the Technical Committee for next version of the protocol.
> > >
> > > Vitaliy Kantor
> > > Morgan Stanley
> > > > Quick and easy - we were thinking of supporting suspension of order(s) via a FIX connection. A client could set his orders to OrdStatus 'suspended' or 'unsuspended', maybe even with a single message for ALL orders. Just a plain and simple tool to 'undisplay' and make unaccessible this client's orders for various different reasons.
> > > >
> > > > Does anyone have suggestions or ideas, or even better, already support this via FIX? I am not so sure that '39=9' (OrdStatus Suspended) means the same thing as in the case of an ECN...
> > > >
> > > >
> > >
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re: Suspension
Vitaliy Kantor 26 Mar 1998 10:22AM ET re: Suspension Cromwell Coulson / National Quotation Bureau, LLC 19 May 1998 12:35PM ET re: Suspension John Armstrong / Morgan Stanley Dean Witter 19 May 1998 12:45PM ET re: Suspension James Michuda / OptiMark Technologies, Inc. 19 May 1998 1:41PM ET re: Suspension Ryan Pierce / Townsend Analytics Ltd. / Archipelago LLC 19 May 1998 2:30PM ET re: Suspension Ryan Pierce / Townsend Analytics Ltd. / Archipelago LLC 19 May 1998 3:43PM ET re: Suspension John Armstrong / Morgan Stanley Dean Witter 19 May 1998 4:17PM ET re: Suspension James Michuda / OptiMark Technologies, Inc. 19 May 1998 2:55PM ET re: Suspension James Michuda / OptiMark Technologies, Inc. 19 May 1998 3:03PM ET
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