SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/07/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      148,151
COMMITMENTS
  39,116   10,379   37,427   37,387   86,241  113,930  134,047   34,221   14,103

CHANGES FROM 07/31/07 (CHANGE IN OPEN INTEREST:      4,606)
   1,153     -982    2,256    1,830    2,961    5,239    4,235     -633      371

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    26.4      7.0     25.3     25.2     58.2     76.9     90.5     23.1      9.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      173)
      91       34       60       30       36      147      109
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/07/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:       84,969
COMMITMENTS
  18,462   24,025    6,076   47,697   40,340   72,235   70,441   12,734   14,528

CHANGES FROM 07/31/07 (CHANGE IN OPEN INTEREST:     -4,757)
  -1,080     -939   -3,773      -13   -1,172   -4,866   -5,883      110    1,126

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.7     28.3      7.2     56.1     47.5     85.0     82.9     15.0     17.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      154)
      35       50       34       41       38      104      108
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 08/07/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      429,149
COMMITMENTS
 124,478   31,837  132,170  119,377  246,832  376,025  410,839   53,123   18,309

CHANGES FROM 07/31/07 (CHANGE IN OPEN INTEREST:      3,843)
  10,053      149     -615   -5,653    4,387    3,785    3,921       59      -78

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    29.0      7.4     30.8     27.8     57.5     87.6     95.7     12.4      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      280)
     163       55       90       39       41      232      161
 

Updated August 10, 2007