SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/22/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      208,635
COMMITMENTS
  44,118    5,171   69,554   62,422  121,721  176,094  196,446   32,541   12,190

CHANGES FROM 04/15/08 (CHANGE IN OPEN INTEREST:      4,544)
     958     -173      404    3,186    4,995    4,548    5,225       -4     -681

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.1      2.5     33.3     29.9     58.3     84.4     94.2     15.6      5.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      163)
      82       34       68       30       34      143      111
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/22/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:      108,473
COMMITMENTS
  30,652   21,716   12,712   50,958   58,891   94,322   93,319   14,151   15,154

CHANGES FROM 04/15/08 (CHANGE IN OPEN INTEREST:      2,537)
      30      305      232    1,386    1,414    1,648    1,951      889      587

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    28.3     20.0     11.7     47.0     54.3     87.0     86.0     13.0     14.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      174)
      54       55       41       43       40      127      116
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/22/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      560,056
COMMITMENTS
 203,178   25,370  151,539  150,051  363,090  504,768  540,000   55,288   20,057

CHANGES FROM 04/15/08 (CHANGE IN OPEN INTEREST:       -404)
  -1,580    2,088      401    4,381     -466    3,202    2,024   -3,606   -2,428

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    36.3      4.5     27.1     26.8     64.8     90.1     96.4      9.9      3.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      280)
     168       52       88       41       47      243      156
 

Updated April 25, 2008