{{Quickfixn}} MarketDataIncrementalRefresh Price Update

[Grant Birchmeier]

Yes.  If you are still unsure, you should confirm with your counterparty
that this is what they expect.

Anything relating to the interpretation of values within valid messages is
specific to the sender and receiver.

FIX is a very fudgy standard, and so you really need to think of FIX as
nothing more than a messaging protocol that comes with a list of
pre-defined messages.  These pre-defined messages are, at best,
suggestions, and in practice most counterparties do customizations to those
messages.  Some counterparties do things with FIX that are technically
wrong (sometimes by accident, but sometimes on purpose).


-Grant

On Wed, Jun 17, 2015 at 5:10 AM, Nicholas Tucker <ntucker at mercuria.com>
wrote:

>  Hi,
>
> Could someone help me with a question regarding the
> MarketDataIncrementalRefresh message. I have read the following:
>
> “For example, assume ten bids for a security ….. Adding a bid with
> MDEntryPositionNo (290)
> <http://btobits.com/fixopaedia/fixdic50/tag_290_MDEntryPositionNo_.html> =
> 4 requires the receiver to shift down other *Market* *Data* Entries, i.e.
> the *Market* *Data* Entry in the 4th display position will shift to the
> 5th, the 5th shifts to the 6th, etc. until the 10th shifts to the 11th. The
> sender must NOT send a modification of all MDEntries in the 4th through
> 10th positions just to update the MDEntryPositionNo (290)
> <http://btobits.com/fixopaedia/fixdic50/tag_290_MDEntryPositionNo_.html> field
> ; the recipient must infer the change”
>
> From
> http://btobits.com/fixopaedia/fixdic50/message_Market_Data_Incremental_Refresh_X_.html?version=5.0&q=Market+Data+-+Incremental+Refresh
>
> Is it up to the receiver to realize that the  11th bid is now out of the
> range and must be removed or does the sender have to send a delete for that
> bid?
>
>
>
> Thanks,
>
> Nick
>
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-- 
Grant Birchmeier
*Connamara Systems, LLC*
*Made-To-Measure Trading Solutions.*
Exactly what you need. No more. No less.
http://connamara.com
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