New Product Summary for Quote Vendors - PJM Western Hub Peak Calendar-Month Real-Time LMP 50 MW - Effective Sunday, May 17, 2009 (Trade Date Monday, May 18, 2009)

CME Group is the world’s leading derivatives marketplace. The company is comprised of four Designated Contract Markets (DCMs). 
Further information on each exchange's rules and product listings can be found by clicking on the links to CME, CBOT, NYMEX and COMEX.