SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/18/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      219,284
COMMITMENTS
  55,930    6,468   74,729   52,775  124,153  183,434  205,350   35,850   13,934

CHANGES FROM 03/11/08 (CHANGE IN OPEN INTEREST:        825)
     426      738    1,439     -933     -458      933    1,720     -107     -894

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    25.5      2.9     34.1     24.1     56.6     83.7     93.6     16.3      6.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      171)
      91       31       65       25       34      139      114
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/18/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:      102,794
COMMITMENTS
  27,312   20,018   12,728   49,190   56,057   89,230   88,803   13,564   13,991

CHANGES FROM 03/11/08 (CHANGE IN OPEN INTEREST:     -1,082)
  -1,900      749      790     -352   -2,774   -1,463   -1,235      381      153

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    26.6     19.5     12.4     47.9     54.5     86.8     86.4     13.2     13.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      171)
      46       55       42       40       41      119      120
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/18/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      677,503
COMMITMENTS
 233,445   29,084  189,605  178,904  433,137  601,955  651,826   75,548   25,676

CHANGES FROM 03/11/08 (CHANGE IN OPEN INTEREST:     24,022)
  -8,266      159   15,429   15,155    7,101   22,318   22,690    1,704    1,332

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    34.5      4.3     28.0     26.4     63.9     88.8     96.2     11.2      3.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      330)
     202       65      119       45       48      292      188
 

Updated March 21, 2008