CME
Block Trade Reporting

Below are guidelines for Reporting Block Trades and the information that must be provided by the seller's clearing firm.

  1. The "seller" clearing firm must report the block trade to the Chicago Mercantile Exchange's Globex® Control Center (GCC) within the timeframe specified by CME® (e.g. within fifteen (15) minutes of execution, in the case of interest rate products.)
  2. The "seller" clearing firm may call the GCC at 312-456-2391 (option 3) or may fax a Block Trade Reporting Form to the GCC at fax number 312-715-6009. If a fax is sent, the clearing firm must call the GCC to confirm receipt.

The following information must be provided by the seller's clearing firm:

  • Name of the seller's clearing firm's representative and his/her phone number.
  • Time of the trade in Chicago time.
  • Number of contracts (minimum contract sizes)
  • Contract codes including month and year (e.g. June 2004 Eurodollar futures EDM4)
  • Price of the contract for futures or the premium, strike price and whether it is a call or put if it is an option (e.g., 97.60 for a Eurodollar futures contract or 30 ticks for the 97.50 June 2004 Eurodollar call).
  • Name of the buyer's clearing firm (this may be the same as the seller's clearing firm)CME Block Trade Reporting Form (PDF)