SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/01/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      197,288
COMMITMENTS
  42,817    5,495   67,348   55,135  111,699  165,300  184,542   31,987   12,745

CHANGES FROM 03/25/08 (CHANGE IN OPEN INTEREST:     -7,168)
  -2,955   -1,655   -2,249     -187   -3,415   -5,391   -7,319   -1,777      151

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.7      2.8     34.1     27.9     56.6     83.8     93.5     16.2      6.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      153)
      78       25       60       32       35      133      104
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/01/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:      102,617
COMMITMENTS
  25,638   16,101   14,891   48,671   55,914   89,199   86,905   13,418   15,712

CHANGES FROM 03/25/08 (CHANGE IN OPEN INTEREST:      4,452)
   2,502      543    1,802     -373    1,908    3,930    4,252      522      200

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    25.0     15.7     14.5     47.4     54.5     86.9     84.7     13.1     15.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      163)
      45       54       41       37       34      115      112
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/01/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      527,365
COMMITMENTS
 192,960   22,641  136,395  141,037  345,550  470,393  504,585   56,972   22,780

CHANGES FROM 03/25/08 (CHANGE IN OPEN INTEREST:    -93,929)
 -24,338   -3,995  -32,017  -24,077  -44,122  -80,432  -80,134  -13,497  -13,795

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    36.6      4.3     25.9     26.7     65.5     89.2     95.7     10.8      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      269)
     167       47       81       40       40      237      139
 

Updated April 4, 2008