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Midweek Tag 48-SecurityID Re-Use
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A tag 48-SecurityID value from a deleted instrument can be reassigned to a newly listed instrument within the same week; therefore, CME Group strongly recommends the client system process the Security Definition message (tag 35=d) with the tag 980=D as received. |
Covered and CBOT Treasury Futures Tail Spreads UDS Expiration
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| title | Covered UDS ExpirationCovered and CBOT Treasury Tail instruments expire at the end of the trading session in which they are created. |
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GTC and GTD orders are not permitted on Covereds or Tail spreads. |
For additional information on UDS expiration, see the following: