```
  
 
SILVER - COMMODITY EXCHANGE INC.                                     Code-084691
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/29/11          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 5,000 TROY OUNCES)                     OPEN INTEREST:      197,944
COMMITMENTS
  47,576    6,659   64,221   45,743  105,709  157,541  176,589   40,403   21,354

CHANGES FROM 03/22/11 (CHANGE IN OPEN INTEREST:      1,537)
    -440       96   -2,087    1,780    1,168     -747     -822    2,284    2,359

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    24.0      3.4     32.4     23.1     53.4     79.6     89.2     20.4     10.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      188)
      94       31       64       41       52      159      128
 
 
COPPER-GRADE #1 - COMMODITY EXCHANGE INC.                            Code-085692
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/29/11          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25,000 POUNDS)                         OPEN INTEREST:      135,993
COMMITMENTS
  47,672   20,628    9,496   63,696   92,693  120,864  122,817   15,129   13,176

CHANGES FROM 03/22/11 (CHANGE IN OPEN INTEREST:      2,149)
   3,183   -2,039     -330   -1,945    3,766      908    1,397    1,241      751

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    35.1     15.2      7.0     46.8     68.2     88.9     90.3     11.1      9.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      172)
      61       49       36       43       44      129      109
 
 
GOLD - COMMODITY EXCHANGE INC.                                       Code-088691
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/29/11          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:      672,647
COMMITMENTS
 249,195   35,212  127,953  218,876  482,961  596,024  646,126   76,623   26,520

CHANGES FROM 03/22/11 (CHANGE IN OPEN INTEREST:    -68,702)
   4,071      624  -53,414  -14,009  -12,768  -63,353  -65,559   -5,349   -3,143

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    37.0      5.2     19.0     32.5     71.8     88.6     96.1     11.4      3.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      373)
     242       60      137       49       51      331      214
```

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Updated April 1, 2011