Trade over FIX
FIX is the lowest-latency path for order entry and market data, and the preferred surface for market makers. Use OrderCancelReplaceRequest to reprice a resting quote rather than cancelling and re-entering it.
Your integration uses three session types:
- Market Data —
SecurityList,MarketDataRequest. See Market data session. - Order Entry —
NewOrderSingle,OrderCancelReplaceRequest,OrderCancelRequest→ExecutionReport. See Order entry. - Drop Copy — a compliance/audit feed of your fills. See Drop copy.
Full protocol details are in the FIX overview.
Certify your integration in UAT against the TrueX_FIX50SP2.xml specification before trading live — see Access and credentials.
If you run an omnibus agency account, the drop-copy feed is also the source you allocate to end clients from post-trade — see Manage clients.