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Re: Fix 4.3 LastQty
John Prewett / Lava Trading
26 May 2009 11:34AM ET> Is lastqty ,tag 32 ,required on an execution filled trade. While in the
> doc. it has an "N" , that seems to apply only to certain types of trades
> such as "29 - Order status request rejected for unknown order" Looking
> at the very first item in the matrix , it seems it is required.
>
> Does anyone do where I can get a definitive answer on this
>
> Thanks Howard
LastQty is conditionally required in an ExecutionReport, depending on ExecType(Tag 150).
Using FIXimate for FIX.4.3 and displaying ExecutionReport, I can see the following text accompanying LastQty:
Quantity (e.g. shares) bought/sold on this (last) fill. Required if ExecType = Trade or Trade Correct. If ExecType=Stopped, represents the quantity stopped/guaranteed/protected for.
So if ExecType=Trade(F) or TradeCorrect(G), this field is required.
With regard to the examples (you quote example 29 from Chapter 4), I imagine for backwards compatibility (when it was called LastShares), you are welcome to set LastQty=0 for ExecType=New(0) as this is not a required field and indicates very little value.
Now I believe this is probably an error in example 29 as LastQty changed from being a mandatory field in an ExecutionReport in FIX.4.2 to being conditionally required in FIX.4.3. So you are welcome to send it in ExecTypes where it isn't actually required or optional, but then it should contain zero and be of no consequence - at which point you would have been better to have not sent it!
I hope this helps.
JohnP
Re: Fix 4.3 LastQty
John Prewett / Lava Trading 26 May 2009 11:34AM ET
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