Question 1

Which FIX Tags are in scope for IB's Exchange translation?

Accepted Answer

IBKR will automatically correct the Exchange code in the following tags. Client will receive their sent exchange code in execution reports, except on Dropcopy sessions.

FIX Tag

Tag Name

Typical use (but not limited too)

| 207 | Security Exchange |…

Question 2

Are FIX Clients required to send the new exchange code in New Order messages from day 1?

Accepted Answer

No. FIX clients are not required to send new exchange codes immediately. IBKR will try to resolve the contract based on the exchange received from the FIX client. If the provided exchange code is one of the old codes, IBKR will automatically switch to the new exchange code to resolve the contract. When IBKR sends back the order status and trades, the original exchange code received from the client will be provided…

Question 3

Which Exchange Code will Dropcopy FIX sessions receive in the execution report?

Accepted Answer

DropCopy FIX sessions will get the ‘CME’ codes in all outbound messages from IBKR.

For Example: Client sends IBKR old Exchange Code (e.g. GLOBEX) in New Order Single message:…

FIX / CTCI Clients