SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/15/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      204,091
COMMITMENTS
  43,160    5,344   69,150   59,236  116,726  171,546  191,220   32,545   12,871

CHANGES FROM 04/08/08 (CHANGE IN OPEN INTEREST:      4,366)
    -139   -1,247    1,287    2,791    3,963    3,940    4,003      426      363

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.1      2.6     33.9     29.0     57.2     84.1     93.7     15.9      6.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      159)
      78       33       64       30       35      138      110
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/15/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:      105,936
COMMITMENTS
  30,622   21,410   12,481   49,571   57,478   92,674   91,369   13,261   14,567

CHANGES FROM 04/08/08 (CHANGE IN OPEN INTEREST:      2,652)
   2,595    2,183     -439      588    1,526    2,744    3,270      -92     -617

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    28.9     20.2     11.8     46.8     54.3     87.5     86.2     12.5     13.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      170)
      54       52       40       41       39      125      112
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/15/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      560,461
COMMITMENTS
 204,758   23,282  151,138  145,671  363,556  501,566  537,976   58,895   22,485

CHANGES FROM 04/08/08 (CHANGE IN OPEN INTEREST:     19,214)
   5,649   -1,139    6,415    3,116   14,075   15,180   19,351    4,034     -138

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    36.5      4.2     27.0     26.0     64.9     89.5     96.0     10.5      4.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      278)
     173       47       81       40       47      240      149
 

Updated April 18, 2008