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CME Group offers test products in the production environment to facilitate connectivity and messaging testing on CME Globex.

The test product is available whenever Customers can test anytime CME Globex is available.  The client system message reached the trading engine if the client system receives either of the following messages:


A successful test is indicated by the client receipt of either:

  • An Execution Report acknowledgment during the pre-open 
  • An Execution Report - Reject during the close  


Table of Contents

The test product mimics the E-mini S&P MidCap 400 (EMD) futures contractproducts mimic the futures contracts currently available to trade on CME Globex. Only outright futures are listed. Market data is disseminated on the MDP 3.0 channel 318 market data channel of the tradable contract.

Test product 0MD is products are available for Order routing only — trades and Fill or Kill (FOK) and Fill and Kill (FAK) orders are not supported.

Test Product Functionality

CME Globex supports the following functionality for test product 0MDproducts.


Test product 0MD has products have the following iLink order entry and market data messaging identifiers:

CME Globex Test Product
iLink: tag 1151-Security Group

MDP 3.0: tag 6937-Asset

iLink: tag 55-Symbol

MDP 3.0 tag 1151-

Security Group


Test – E-mini S&P MidCap 400 Futures

0MD (zero-M-D)


iLink Order Entry

Order entry functionality is available for test product test product 0MD productson iLink as described below.


Market data functionality for test product 0MD is products is available as follows.

Market States

Only the Pre Open market state is available for 0MD test contracts per the following schedule.

DayTime (CT)Instrument Security Status (tag 35-MsgType = f)
tag 326-SecurityTradingStatus =
Pre Open16:0021 (Pre Open)
Close16:594 (Close)
Monday-Thursdaytag 326-SecurityTradingStatus =
Pre-Open16:4521 (Pre Open)
Close16:594 (Close)

Market Data Statistics

The following statistics are available for 0MDfor test contracts.

  • Indicative Opening – Incremental Refresh tag 35-MsgType=X, tag 269-MDEntryType=4 (Opening price)
  • A fixed, reasonable value will be published in the Daily Settlement – Incremental Refresh tag 35-MsgType=X, tag 269-MDEntryType=6 (Settlement price)
  • Preliminary settlements will not be published
  • Messaging Controls are applicable


CME Globex Credit Controls

For GC2 purposes,  0MD will test products will have a $1 margin rate.

Drop Copy

Drop Copy is available for 0MD for test product order entry messages.