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Direct Access Server

The Direct Access Server (DAS) interface provides participants with high performance order entry connectivity to the CHX Matching System. Orders for any destination other than the CHX Matching System cannot be routed using the DAS. Please contact the CHX Help Desk for information on the process for routing orders to CHX Institutional Brokers.

DAS Advantages

  • Very low message latencies
  • Support for all Matching System order types
  • Cancellation of orders on:
    • CHX disconnect
    • Participant disconnect
    • CHX Matching System failure
  • Standard FIX 4.0, 4.1, and 4.2 protocol


DAS Interface Specification DAS Interface Specification - updated 16-Nov-2017

More Information

CHX Help Desk