SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/20/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      175,014
COMMITMENTS
  46,629    9,215   53,160   42,631  100,917  142,420  163,292   32,594   11,721

CHANGES FROM 05/13/08 (CHANGE IN OPEN INTEREST:      7,367)
   4,766    1,300    2,757     -664    3,153    6,859    7,209      508      158

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    26.6      5.3     30.4     24.4     57.7     81.4     93.3     18.6      6.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      178)
      91       39       68       32       37      152      120
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/20/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:      101,637
COMMITMENTS
  24,610   19,555   13,404   49,139   53,416   87,154   86,375   14,483   15,262

CHANGES FROM 05/13/08 (CHANGE IN OPEN INTEREST:      3,187)
     461     -382    1,976      146    1,477    2,584    3,071      603      116

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    24.2     19.2     13.2     48.3     52.6     85.8     85.0     14.2     15.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      164)
      46       58       42       37       38      112      118
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/20/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      595,544
COMMITMENTS
 211,592   25,796  159,207  162,690  385,213  533,489  570,216   62,055   25,328

CHANGES FROM 05/13/08 (CHANGE IN OPEN INTEREST:     25,700)
  19,203  -12,774    8,605   -9,172   32,117   18,636   27,948    7,064   -2,247

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    35.5      4.3     26.7     27.3     64.7     89.6     95.7     10.4      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      302)
     181       59      103       40       51      267      170
 

Updated May 23, 2008