SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE Code-006261 OPTION AND FUTURES COMBINED POSITIONS AS OF 12/31/07 | --------------------------------------------------------------| NONREPORTABLE NON-COMMERCIAL | COMMERCIAL | TOTAL | POSITIONS --------------------------|-----------------|-----------------|----------------- Long | Short |Spreads | Long | Short | Long | Short | Long | Short -------------------------------------------------------------------------------- (CONTRACTS OF 25 U.S. EPA SO2 EMMISSION OPEN INTEREST: 13,347 COMMITMENTS 3,919 1,475 1,895 6,884 9,352 12,698 12,722 649 625 CHANGES FROM 12/24/07 (CHANGE IN OPEN INTEREST: -214) 215 -864 518 -1,478 -389 -746 -736 532 522 PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER 29.4 11.0 14.2 51.6 70.1 95.1 95.3 4.9 4.7 NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS: 31) 11 9 13 10 11 26 28
Updated January 4, 2008