SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/25/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      204,456
COMMITMENTS
  45,772    7,150   69,597   55,322  115,114  170,692  191,861   33,764   12,594

CHANGES FROM 03/18/08 (CHANGE IN OPEN INTEREST:    -14,828)
 -10,158      682   -5,132    2,547   -9,038  -12,742  -13,488   -2,086   -1,340

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    22.4      3.5     34.0     27.1     56.3     83.5     93.8     16.5      6.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      155)
      77       30       58       30       33      132      101
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/25/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:       98,165
COMMITMENTS
  23,136   15,558   13,089   49,044   54,006   85,269   82,652   12,896   15,512

CHANGES FROM 03/18/08 (CHANGE IN OPEN INTEREST:     -4,629)
  -4,176   -4,460      360     -145   -2,051   -3,961   -6,151     -669    1,522

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    23.6     15.8     13.3     50.0     55.0     86.9     84.2     13.1     15.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      162)
      41       54       40       39       39      111      116
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/25/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      621,294
COMMITMENTS
 217,299   26,636  168,412  165,114  389,671  550,825  584,719   70,469   36,575

CHANGES FROM 03/18/08 (CHANGE IN OPEN INTEREST:    -56,208)
 -16,146   -2,448  -21,193  -13,790  -43,466  -51,130  -67,107   -5,079   10,899

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    35.0      4.3     27.1     26.6     62.7     88.7     94.1     11.3      5.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      308)
     182       61      112       45       47      265      186
 

Updated March 28, 2008