IB - Futures order handling, loss of FIFO priority

Don't count on them to fix this. They may say the are but most likely will just drag this out. Traders using them for futures need to stay on top of this, keep hounding them and posting here.
 
Quote from schizo:

I have no idea what FIX tag is, but I'm sick and tired of not being filled. When I place my LIMIT order, usually much in advance, my order shows up as the only order on the ladder.

However, when the price reaches my bid or offer, the order size increases as others are piling on top of me. But, while I see the orders cross the tape, my order is NOT being filled.

If I'm first in line, why am I not getting a fill? What the hell is going on?!
More...

Which contract is that for? I know for grains its not fifo,its some size based/pro-rata algo bullshit that the cme uses to have their best customers get the first fills.I'm not sure which other contracts also use this.:D
 
Ask and ye shall receive.

CME Matching Algorithms

https://www.cmegroup.com/globex/int...nctionality/elements/matching-algorithms.html

http://www.cmegroup.com/globex/introduction/

Customers can determine the matching algorithm assigned to each product from FIX tag 1142-Match Algorithm, in the FIX/FAST Security Definition (tag 35=d) market data message.

The matching engine applicable to CME products can also be found for each product on the CME website.

The issue here relates to loss of time priority for FIFO markets where the modification of FIX tag #77 causes the order to be resubmitted at the back of the queue.
 
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