SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 07/31/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      143,544
COMMITMENTS
  37,962   11,362   35,171   35,558   83,280  108,691  129,812   34,853   13,732

CHANGES FROM 07/24/07 (CHANGE IN OPEN INTEREST:     -3,779)
  -4,844      702   -2,288    2,828   -3,016   -4,304   -4,602      526      824

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    26.4      7.9     24.5     24.8     58.0     75.7     90.4     24.3      9.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      169)
      91       31       55       31       36      143      105
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 07/31/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:       89,725
COMMITMENTS
  19,543   24,964    9,848   47,710   41,512   77,101   76,324   12,624   13,401

CHANGES FROM 07/24/07 (CHANGE IN OPEN INTEREST:     -5,080)
  -2,448        6     -424     -623   -4,079   -3,496   -4,498   -1,584     -583

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.8     27.8     11.0     53.2     46.3     85.9     85.1     14.1     14.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      174)
      46       52       48       44       38      129      119
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 07/31/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      425,305
COMMITMENTS
 114,426   31,688  132,785  125,030  242,445  372,241  406,918   53,064   18,387

CHANGES FROM 07/24/07 (CHANGE IN OPEN INTEREST:    -65,579)
 -40,744    3,905  -17,025    1,982  -49,985  -55,787  -63,105   -9,792   -2,474

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    26.9      7.5     31.2     29.4     57.0     87.5     95.7     12.5      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      267)
     153       56       91       41       40      226      158
 

Updated August 3, 2007