Notice to Members
Notice No. 160
03/19/2007
NYMEX ClearPort Trade Management System ("TMS") Consistent Price Reporting for Futures Calendar Spread for Copper, Aluminum, Gold and Silver
On Monday, April 2, 2007 NYMEX ClearPort® TMS will become the system for Production trade entry and trade management for Gold Futures and Gold Options.

With this final transition, the following changes will be instituted for Market Data views in NYMEX ClearPort TMS, including Time & Sales data. These changes will make COMEX data more consistent, and standardized alongside NYMEX Division data.

Futures Calendar Spread Differentials
  • Gold (GC) and Silver (SI) futures spread prices reported from the COMEX trading floor will now be in line with the prices of Gold and Silver outright transactions. As a result, futures spread prices for Gold and Silver will no longer be reported with an extra zero in all Market Data views, including the Wallboards.
Futures Calendar Spread Negative Price Reporting
  • The Exchange will adopt the same method it uses for NYMEX floor futures calendar spreads to indicate a negative differential for all COMEX floor futures calendar spreads.

  • When viewing Time & Sales data in NYMEX ClearPort TMS, a far month of a futures calendar spread appearing as the first leg of the transaction will indicate that the spread differential is negative.

  • For example, the premium month will be listed first in the sequence and not as the second month in the sequence.
If you have any questions, please contact COMEX Floor staff.
Should you have any questions or require any further information, please contact exchangeinfo@nymex.com